organizational behavior management
RESEARCH ARTICLE
Positive organizational behavior: Longitudinal
effects on subjective well-being
Kathrin Heinitz 1☯*, Timo Lorenz1☯, Daniel Schulze1☯, Julia Schorlemmer2
1 Department of Education and Psychology, Freie Universitaet Berlin, Berlin, Germany, 2 Department of
Occupational Medicine, Charité Berlin, Berlin, Germany
☯ These authors contributed equally to this work. * [email protected]
Abstract
Increasing individual subjective well-being has various positive outcomes, knowledge about
its antecedents and the mediators of this relationship can therefore help to increase subjec-
tive well-being and the accompanying positive effects. The more future oriented facets of
psychological capital, i.e. optimism, hope and self-efficacy have been shown in several stud-
ies to be positively related to subjective well-being and negatively to ill-being. Furthermore,
recent studies suggest coping strategies as mediators for these relationships. In our study,
we examined the longitudinal relation of optimism, hope and self-efficacy with subjective
well-being and ill-being in a German panel dataset and tested the mediating effect of flexible
goal adjustment in a path model. Our results show a statistically significant positive effect of
self-efficacy and optimism on subjective well-being as well as a statistically significant nega-
tive effect of optimism on depression over three years. All three predictors show a statisti-
cally significant relation with flexible goal adjustment, but flexible goal adjustment did not
mediate the effect on subjective well-being or depression.
Introduction
Happy workers will be more productive workers—as Cropanzano and Wright [1] acknowl-
edge, this relation has been supported if happiness was operationalized as well-being, although
the happy-productive worker hypothesis [2] has been subjected to much debate and produced
controversial empirical results [3]. To learn about mechanisms that increase well-being is rele-
vant in the work context as well as independent of the context [4]. It is relevant for the individ-
ual itself, but also, according to the happy productive worker hypothesis, for organizations.
Numerous theories have set out to explain how various individual or job characteristics
influence well-being (for an overview see [5]), e.g. the conservation of resources theory [6], the
job-demands-resources theory [7] or the stressor-detachment model [8]. According to the con-
servation of resources theory [6], individuals seek to acquire and maintain resources. Their gain
or maintenance results in well-being [9]. Hobfoll [6] distinguishes four types of resources that
have the potential to increase well-being: physical objects, conditions, energies or personal char-
acteristics [9]. In our study we focus on personal characteristics and more specifically on charac-
teristics proposed by positive psychology, as well-being can be enhanced by interventions
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 1 / 15
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OPEN ACCESS
Citation: Heinitz K, Lorenz T, Schulze D,
Schorlemmer J (2018) Positive organizational
behavior: Longitudinal effects on subjective well-
being. PLoS ONE 13(6): e0198588. https://doi.org/
10.1371/journal.pone.0198588
Editor: Amelia Manuti, Universita degli Studi di Bari
Aldo Moro, ITALY
Received: March 21, 2017
Accepted: May 22, 2018
Published: June 22, 2018
Copyright: © 2018 Heinitz et al. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which
permits unrestricted use, distribution, and
reproduction in any medium, provided the original
author and source are credited.
Data Availability Statement: The data for this
study comes from the 2008 wave of the German
Ageing Survey (DEAS). The data is not owned by
the authors but property of the Research Data
Centre (FDZ-DZA). Data from the Research Data
Centre (FDZ-DZA; https://www.dza.de/en/fdz.html)
is available free of charge to scientific researchers
for non-profitable purposes. The FDZ-DZA provides
access and support to scholars interested in using
DEAS data for their research. Data from completed
waves are available for the scientific community
free of charge. However, for reasons of data
protection, signing a data distribution contract is
targeting on these constructs [10]. More specifically we examine the longitudinal effects of self-
efficacy, optimism and hope on well-being. Coping strategies are being discussed to function as
mediating mechanisms of this relation [11]. Flexible goal adjustment as one coping strategy has
been shown to mediate the relationship between optimism and well-being in a concurrent sam-
ple [11]. We therefore also examine if flexible goal adjustment mediates the relation between
the three facets optimism, hope and self-efficacy with well-being over time.
Positive organizational behavior: Self-efficacy, optimism and hope
Positive psychology in the workplace encompasses various concepts [12] such as positive orga-
nizational behavior or positive organizational scholarship. They are united in their focus on
strengths and flourishing [13, 14] but have differing perspectives. The focus of positive organi-
zational behavior is on the individual within the organization. Luthans [15] defines micro-
level positive organizational behavior as the “study and application of positively oriented
human resource strengths and psychological capacities”(p59). Positive organizational behavior
in this sense is measurable and meets the open-to-development criterion. It is therefore open
to individual learning and change [15–17]. Three of these positive organizational behavior
capacities are self-efficacy, optimism, and hope. They all “fit the specific criteria of being posi-
tive, unique, measurable, capable of being learned and developed, and manageable for perfor-
mance improvement”([15] p70). All three are part of the overarching concept of Psychological
Capital (PsyCap) [18, 17], including resiliency besides self-efficacy, optimism, and hope. Psy-
Cap was developed as a work-related concept and, as a whole, is defined as “a core psychologi-
cal factor of positivity in general, and POB criteria meeting states in particular, that go beyond
human and social capital to gain a competitive advantage through investment/development of
‘who you are’” ([18] p253). PsyCap influences a variety of outcomes, such as job satisfaction
and commitment [19, 20] or reduced absenteeism [21]. Furthermore, individuals high in Psy-
Cap perform better than those low in PsyCap since they can draw upon more resources to pur-
sue goals [22, 23]. Furthermore, PsyCap is linked to an improved psychological and physical
well-being [24]. Of the four PsyCap components especially self-efficacy, optimism and hope
are goal- and future oriented.
Self-efficacy is a dispositional resource used for coping with all kinds of demands and
challenges [25, 26] and can be defined as “one’s beliefs about his or her ability to mobilize
the motivation, cognitive resources, and courses of action necessary to execute a specific
action within a given context”([27] p66). Optimism as conceptualized within the concept of
PsyCap [28] includes not only the dispositional optimistic look towards the future, but also
global positive expectations [29, 30]. Following Seligman [14], not only this positive outlook
but also the personal reflection of positive and negative events in the past, present and
future relevantly influence optimism [30]. Optimistic persons expect positive things to hap-
pen and therefore believe in a positive future [31, 32]. Hope is “a positive motivational state
that is based on an interactively derived sense of successful agency (goal directed energy)
and pathways (planning to meet goals)”([33] p287). Hopeful individuals are able to generate
alternative routes in an adaptive way [34, 35]. Goal-directed thoughts lead to positive and
active emotions (e.g. curiosity) or negative and passive emotions, depending on past experi-
ences with goal pursuits [36, 35]. Hopeful individuals use the ‘willpower’ to generate per-
sonal goals and resolutely follow them and the ‘waypower’ to adapt alternatives while
obstacles occur on their way [37]. There has been a lot of research regarding the distinction
of optimism and hope [38–42], and while being overlapping and having trait-like thoughts
about goals in common [41], their differential relations with outcomes suggest that they are
still distinct constructs [39, 43].
Longitudinal effects on well-being
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required before data can be obtained. The FDZ-DZA
can be contacted via an application form: https://
www.dza.de/en/fdz/access-to-data/formular-deas-
en-english.html For this study the data waves 2008
and 2011 were used.
Funding: The authors received no specific funding
for this work.
Competing interests: The authors have declared
that not competing interests exist.
Subjective well-being, ill-being and positive organizational behavior
All three, self-efficacy, hope, and optimism have shown to be related to or predict well-being as
well as ill-being. One way of operationalizing well-being is via subjective well-being, which is a
multifaceted construct, consisting of affective and cognitive components [44]. It is not only associ-
ated with but can also lead to health and longevity [3, 45, 46], increase work-related productivity
and success [47], and positively influence social relationships [45, 48]. In contrast to well-being is
the term ill-being, which refers to negative psychological constructs such as depression [49]. For
the examination of the effects of positive organizational behavior both aspects seem to be relevant,
the prevention of ill-being as well as the promotion of subjective well-being, as the absence of ill-
being does not automatically lead to subjective well-being and vice versa [50].
Self-efficacy as “the power of believing you can” [51] correlates to and influences well-being
positively [25, 52–56], and reduces depression [57–59]. Optimism influences the way people
feel and how they actively try to solve problems when being confronted with obstacles and
hence influences subjective well-being [60–62]. Practicing optimism leads to increased well-
being [63]. Hopeful individuals are motivated to energetically pursue goals and to consider
alternative routes to achieve them [37]. They “generate more effective coping strategies to set-
backs due to pathways thinking, and thus experience more positive emotions which”([37]
p295) and this enhances their well-being. Accordingly, in their meta-analysis and review,
Reichard et al. [37] found statistically significant effect sizes between hope and job satisfaction
and well-being and negative effect sizes between hope, stress, and burnout.
So far, no study compared the effects of these three central constructs of positive psychol-
ogy. PsyCap is the only exception, but it is mostly examined as g-factor, effects of its subfacets
are seldom shown. PsyCap also has statistically significant relations to well-being [64] and pre-
dicts subjective well-being within a three-week period [65]. According to previous research on
self-efficacy, optimism and hope with well-being and ill-being, we propose:
(1) Self-efficacy (a), optimism (b) and hope (c) at T0 positively predict subjective well-being
at T1.
(2) Self-efficacy (a), optimism (b) and hope (c) at T0 negatively predict depression scores at T1.
Flexible goal-adjustment as a mediator
Goal regulation strategies have been frequently discussed as possible mediators between opti-
mism and well-being [11, 66, 67]. The results of Hanssen et al. [11] suggest that especially flexi-
ble goal adjustment applies as a mediator in this relationship. Flexible goal adjustment can be
seen as passive accommodative coping, as changing personal preferences due to situational
restrictions, which seems to be especially relevant in later life [68]. It is complementary to tena-
cious goal pursuit, an assimilative coping strategy, in which life circumstances are adjusted to
obtain a desired condition [68]. The flexible management of personal goals is associated with
well-being [69–73]. Goal regulation strategies such as flexible goal adjustment were found to
affect the quality of life and general well-being of patients with chronic illnesses [74, 75]. Fur-
thermore, in older age flexible people report higher levels of self-esteem [76] and are more
likely to look at their biographical past in a self-enhancing way [77]. By disengaging old goals
when necessary, reengaging new goals and accepting this change by adjusting to the situation,
people can stay optimistic and hopeful despite witnessed difficulties and are more satisfied
with their lives [68, 71]. At first sight, high self-efficacy should inhibit flexible goal adjustment,
in a sense that if one is certain about one’s possibilities, there is no need to change a goal. But
as Brandtstädter ([78] p143) argued, it might not be that simple, as “if getting what one wants
Longitudinal effects on well-being
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is central to the concept of power, it follows that a way to retain a sense of efficacy may be to
adjust one’s preferences to the range of the feasible”. Following this argumentation, the rela-
tion of self-efficacy and subjective well-being as well as depression, should also be mediated by
flexible goal adjustment.
We therefore propose:
(3) Flexible goal adjustment mediates the effect of self-efficacy (a), optimism (b) and hope
(c) at T0 on subjective well-being at T1.
(4) Flexible goal adjustment mediates the effect of self-efficacy (a), optimism (b) and hope
(c) at T0 on depression at T1.
Method
Participants and procedure
Data for this study comes from the German Ageing Survey [79], an ongoing register-based,
cohort-sequential, nationwide representative survey of the German population aged 40 to 85.
The present study used the sample of 2008 (6205 participants) and 2011. In 2011, 2858 partici-
pants of the original sample were re-interviewed with a response rate of 64.4%. The response
rate corresponds to that of other longitudinal studies with comparable age groups [80]. Partici-
pants completed face-to-face interviews and a self-administered questionnaire. Due to the lon-
gitudinal data analysis only people who were interviewed 2008 and 2011, with employment
status working and maximum age 65 (maximum retirement age in Germany) were included.
These criteria excluded 1858 persons from the data analysis. Furthermore, 408 were excluded
due to missing data (345 due to declined answers on relevant variables, 63 due to high amount
(> 50%) of missing data scale wise). The total sample included 592 people between 39–62
years of age in 2008 (M = 49.43, SD = 5.60), and nearly half of them (47%) were men.
Measures
Self-Efficacy was measured using the Generalized Self-Efficacy Scale [81]. The scale consists of
5 items (e.g. “I can usually handle whatever comes my way”) with a 4-point Likert response
format (Cronbach’s α2008 = .79; α2011 = .79). Optimism was measured using the ‘Affective valence of future time perspective’ scale [82].
The scale consists of five items (e.g. “I look to the future with confidence”) with a 4-point
Likert response format (Cronbach’s α2008 = .86; α2011 = .86). Hope was measured using the Hope Scale [83]. The scale consists of 8 items (e.g. “There are
lots of ways around any problem”) with a 4-point Likert response format (Cronbach’s α2008 = .83; α2011 = .83).
Flexible goal adjustment was measured using the Flexible Goal Adjustment Scale [84]. The
scale consists of 10 items (e.g. “I adapt quite easily to changes in plans or circumstances”) with
a 5-point Likert response format (Cronbach’s α2008 = .77; α2011 = .77). Subjective well-being was composed of the three factors positive affect, negative affect, and life
satisfaction [44]. The affective component of subjective well-being was measured using the German
version [85] of the brief Positive Affect Negative Affect Scale (PANAS) [86]. The scale consists of 10
items, 5 negative adjectives (e.g. “ashamed”, Cronbach’s α2008 = .87; α2011 = .86) and 5 positive adjec- tives (e.g. “enthusiastic”, Cronbach’s α2008 = .85; α2011 = .86) with a 5-point Likert response format.
The cognitive component of subjective well-being was measured using Satisfaction with
Life Scale [87]. The scale consists of 5 items (e.g. “I am satisfied with my life”) with a 5-point
Likert response format (Cronbach’s α2008 = .84; α2011 = .85).
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Depressive symptoms were measured using the General Depression Scale (Allgemeine
Depressions Skala) [88]. The scale consists of 15 items (e.g. “I felt that everything I did was an
effort”) with a 4-point Likert response format (Cronbach’s α2008 = .85; α2011 = .87). More details on the questionnaires used can be found at www.dza.de/en/research/deas/
research-instruments.html.
Covariates / Control variables
Sex is an important covariate for subjective well-being, as it has been revealed that especially
older women reported lower subjective well-being [89] and there are differential relations for
sex between our predictors and subjective well-being [37]. Income and education are positively
related to subjective well-being [90]. The socio-economic status (SES) in general affects physi-
cal and psychological health negatively [91, 92]. SES is assessed by the individual´s occupation
and classified with the International Socio-Economic Index of Occupational Status (ISEI),
which scales occupations by relating them to education and income [93]. SES influences sub-
jective well-being and health through different ways: Low SES groups show higher health risk
behavior [94], have less access to health care and receive qualitatively poorer health care [95],
the material deprivation is higher and the psychosocial environment is more stressful over the
life course [96]. Further we included the occurrence of special health events such as an accident
or a serious illness due to the possible impact of these events on subjective well-being and
depression [97].
Data analysis
We checked the demographic data for effects of systematic drop-outs due to the large gap
between complete and final data set for our analysis. Only minimal changes in age, sex and the
distribution of individuals in East and West Germany could be found.
As subjective well-being consisted of three independently measured constructs, we tested
for the unidimensionality of the compound variable using confirmatory factor analysis. The
Satorra-Bentler adjusted χ2 was calculated to adjust for non-normal distributions of the vari- ables [98]. The fit was inspected using the criteria proposed by Hu and Bentler [99]. According
to these indices the model for subjective well-being in 2008 (Satorra-Bentler-χ2 (1, 592) = .025, p = .874, CFI = 1.00, SRMR = .003, RMSEA = .00, CIRMSEA = .00 - .06) as well as the model for
SWB in 2011 (Satorra-Bentler-χ2 (1, 592) = .052, p = .820, CFI = 1.00, SRMR < .001, RMSEA < .001, CIRMSEA = .00 - .06) showed a good model fit. To test our hypotheses we used a struc-
tural equation model (SEM). The data analysis was run using the statistical software R [100].
The confirmatory factor analyses and SEM were conducted using the “lavaan” package [101].
Results
Table 1 offers a general overview over the bivariate correlations of all variables used in this
study. The path model to test our hypotheses shows an acceptable model fit, Satorra-Bentler-
χ2 (5, 592) = 17.952, p = .003, CFI = .979, SRMR = .015, RMSEA = .066, CIRMSEA = .037 - .098. Fig 1 shows the tested model with highlighted statistically significant paths while all direct
regression paths of the model are displayed in Table 2. Self-efficacy and optimism at T0 both
statistically significantly predict subjective well-being at T1, but only optimism at T0 shows sta-
tistically significant negative relations to depression at T1. Hope at T0 shows no statistically sig-
nificant relation to either subjective well-being or depression at T1. Hypotheses 1(c) and 2(c)
therefore have to be rejected.
Longitudinal effects on well-being
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Whereas all three predictors are statistically significantly related to flexible goal adjustment
at T0, no indirect path is statistically significant with standardized regression paths between
.002-.01. These results are not in favor of hypotheses 3 and 4.
Discussion
Positive organizational behavior focuses on individual strengths and resources [15], optimism,
hope and self-efficacy being prominent examples. All three are related to positive aspects from
an individual perspective but also from an organizational perspective. We therefore wanted to
examine if those three aspects have a longitudinal relation with subjective well-being and ill-
Table 1. Summary of the bivariate correlations of all variables.
1 2 3 4 5 6 7 8 9 10 11
1) Age 1
2) Sex -.08 1
3) ISEI .05 .00 1
4) Flex 08 .00 .01 .04 1
5) Hope 08 -.01 -.02 .17��� .49��� 1
6) Optimism 08 -.03 .00 .19��� .46��� .64��� 1
7) Self-efficacy 08 -.02 -.02 .13�� .47��� .80��� .59��� 1
8) SWB 08 .01 .05 .19��� .38��� .66��� .63��� .58��� 1
9) Depression 08 .01 .09� -.08 -.18��� -.24��� -.30��� -.23��� -.38��� 1
10) SWB 11 .06 -.03 .16��� .36��� .54��� .54��� .52��� .66��� -.37��� 1
11) Depression 11 .02 .12�� -.11�� -.14��� -.20��� -.29��� -.22��� -.30��� .42��� -.46��� 1
12) Health Event .01 -.03 -.02 -.03 -.05 -.07 -.04 -.10� .09 -.13��� .14���
Note. ISEI = socio-economic index of occupational status, Flex 08 = flexible goal-adjustment 2008, SWB 08 = subjective well-being 2008, SWB 11 = subjective well-being 2011; sex is coded male/female; critical health event is coded no/yes
� p < .05
�� p < .01
��� p < .001.
https://doi.org/10.1371/journal.pone.0198588.t001
Fig 1. Path model of the longitudinal relation of self-efficacy, optimism and hope with well-being and depression,
mediated by flexible goal-adjustment. Regression weights are standardized beta-weights, a
critical health event is
coded no/yes; b
sex is coded male/female;.� p < .05, �� p < .01, ��� p < .001.
https://doi.org/10.1371/journal.pone.0198588.g001
Longitudinal effects on well-being
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being and if this relation is mediated by the coping strategy flexible goal adjustment. For our
study we used a working subsample of the German Ageing Survey [79].
In accordance with other studies, our results show that all three facets are correlated to sub-
jective well-being and depression concurrently [38, 102, 103]. According to the results of our
path model, hope seems not to be relevant for time-lagged subjective well-being nor depres-
sion, but optimism predicts both and self-efficacy predicts subjective well-being after a three
year period. Hence, in a direct comparison, optimism seems to be the most relevant for subjec-
tive well-being and depression of the three constructs.
One reason for the diminishing effect of hope could be the chosen outcome criterion. Bry-
ant and Cvengros [39] argue that optimism focuses more on broader quality of future out-
comes whereas hope focuses more on specific goals. As well-being in our study with the two
components of affect and general life satisfaction presents rather a general positive than a goal-
specific outcome, our results are in accordance with their argument. This applies accordingly
for our second outcome variable depression. On the other hand, our results also raise the ques-
tion if the impact of hope diminishes because optimism and self-efficacy have too much
Table 2. Regression paths using MLM estimator.
Parameter estimate unstandardized standard error standardized p-score
Flexible goal adjustment 08
Hope 08 .262 .083 .211 .002
Optimism 08 .206 .046 .229 < .001
Self-efficacy 08 .219 .074 .179 .003
Sex .016 .034 .017 .628
Age .001 .003 .017 .629
ISEI -.002 .001 -.060 .078
Depression score 11
Depression score 08 .329 .063 .305 < .001
Flexible goal adjustment 08 .009 .043 .011 .834
Hope 08 .082 .067 .081 .219
Optimism 08 -.140 .046 -.190 .003
Self-efficacy 08 -.094 .066 -.095 .153
Sex .075 .029 .095 .009
Age .001 .003 .016 .649
ISEI -.001 .001 -.057 .152
Critical health event .111 .054 .098 .040
Subjective well-being 11
Subjective well-being 08 .423 .045 .447 < .001
Flexible goal adjustment 08 .102 .075 .059 .173
Hope 08 .049 .138 .023 .725
Optimism 08 .202 .075 .130 .007
Self-efficacy 08 .282 .114 .133 .014
Sex -.091 .050 -.054 .072
Age .008 .005 .055 .079
ISEI .002 .002 .027 .387
Critical health event -.173 .073 -.072 .018
Notes: ISEI = socio-economic index of occupational status, χSB 2
(5, 592) = 17.952, p = .003, CFI = .979, SRMR = .015, RMSEA = .066, CIRMSEA = .037 - .098; sex is
coded male/female; critical health event is coded no/yes.
https://doi.org/10.1371/journal.pone.0198588.t002
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overlap with the waypower and willpower components of hope [33]. In the study of Bryant
and Cvengros [39] for example, as well as in other studies [103] the three variables are highly
correlated. Bryant and Cvengros [39] argue that hope and optimism have discriminant rela-
tions with other variables, but can also be considered as having a common g-factor. The meta-
analytical results in the study of Alarcon et al. [38] accordingly point out, that optimism and
hope are distinguishable but related and that they have discriminant relations with outcome
variables, with optimism being more relevant in situations with low personal control and hope
being more relevant in situations with higher personal control. Further research with different
outcome variables is therefore needed to clarify if hope in comparison to optimism has more
impact on time-lagged rather goal specific outcomes.
Our results are also in line with Benyamini and Roziner [104] who found a statistically
significant relation between optimism and self-rated health on life satisfaction after a five
year period. In their study this relation was eliminated when affectivity was included in the
analysis. In our study, however, affect is a part of the outcome as the broader concept of sub-
jective well-being includes life satisfaction as well as positive and negative affect. Optimism
might therefore be more responsible for the variance in the affective part of our subjective
well-being measure.
Self-efficacy was also related to subjective well-being over a three year period in our sample.
This is in support of previous studies that see self-efficacy as an important factor for well-being
[53]. However, we found no relation with ill-being. Although depression goes in hand with
lower levels of self-efficacy [105], higher levels of self-efficacy seem not to impact levels of
depression significantly. This result contradicts the findings of Holahan and Holahan [58] and
Maciejewski et al. [59]. It should be stated though, that the study of Holahan and Holahan [58]
focuses on self-efficacy for social support. Social support on the other hand also has an impact
on depression [58, 106]. Maciejewski et al. [59] examined general self-efficacy. Their effect size
for the indirect effect of baseline self-efficacy on follow-up depression for the subsample with-
out prior depression (βindirect = -0.114, s.e. = 0.033, p < 0.001) resembles ours (βindirect = -0.095, s.e. = 0.066, p = 0.153), but Maciejewski et al. [59] have a much larger sample. Further- more, overlaps between hope, optimism and self-efficacy have been controlled for in our sam-
ple, which might reduce the effect of self-efficacy. Taken together, the results suggest that there
is a possible small effect of self-efficacy on later depression.
Concurrently, optimism, hope and self-efficacy were all correlated with flexible goal adjust-
ment. Contrary to the results of Hanssen et al. [11] however, flexible goal adjustment did not
mediate the relation between optimism and self-efficacy with well-being nor with depression
over a three-year period. Hence, flexible goal adjustment might have cross-sectional assoca-
tions with well-being [11] but no long-time mediating effect.
The substantially long period of time (three years in our study) might be a drawback as
adjusted goals might rather be accepted as new goals. In order to examine the mediating effects
of flexible goal adjustment in the relation of positive organizational behavior and subjective
well-being respectively ill-being, longitudinal designs with shorter time periods could therefore
be appropriate. Furthermore, tenacious goal pursuit [66] might be an alternative for the long-
time mediation, as the modification of behavior or the situation in order to fit with one’s goals
might rather be the appropriate long-term strategy resulting in higher levels of subjective well-
being and lower levels of ill-being. Following the argumentation of Heyl, Wahl, and Mollen-
kopf [72] both flexible goal adjustment and tenacious goal pursuit are necessary for an adaptive
self-regulation and both have differential effects on the affective aspects of subjective well-
being. In order to get a complete picture, both aspects as well as their interactions should be
considered.
Longitudinal effects on well-being
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Practical implications
Subjective well-being has many desirable effects on a personal but also on the organizational
level (e.g. health and longevity, [45], or work-related productivity, [47]). Knowing about ante-
cedents of subjective well-being, and especially about developable factors is therefore helpful
in many ways. Positive organizational behavior subsumes developable factors that have an
effect on organizational well-being, optimism, hope and self-efficacy being among them.
There are intervention programs, even online interventions, in order to develop these facets,
e.g. the interventions to strengthen psychological capital [107, 20], that can support subjective
well-being and reduce ill-being. Focussing especially on optimism and self-efficacy can help to
develop easy to handle and little time-consuming interventions and strengthen the organiza-
tions following a people-based approch as e.g. described by Manuti and de Palma [108].
Furthermore, subjective well-being has an impact on the retention intentions of older
workers [109]. Supporting an optimistic outlook and self-efficacy in older workers might
therefore be one part of the puzzle to retain them in the active workforce in order to face the
demographic change. One has to bear in mind, however, that optimism and self-efficacy do
not inherently have a positive effect, but that this effect depends on the context [110]. There-
fore, “the best interventions to promote well-being may thus be those that teach people differ-
ent skills [. . .] and the best time and place to use each one” ([111] p577).
Limitations
As we used the panel data of the German Ageing Survey [79], we were restricted in our mea-
sures as well as in the age range of our participants. We had to rely on the measures used in the
German Ageing Survey and they proved to have satisfying internal consistency scores, but we
have to point out, that our results only hold for the measures used. Other measures that focus
on different aspects might yield different results [38]. Furthermore, our results are specific for
an older population. As we mentioned, certain coping strategies might be more relevant in
later life [78, 68], implications for younger populations therefore cannot be deviated and need
further research.
Also we used context-free measures of well-being. Referring to the happy-productive
worker hypothesis, and the remarks made by Cropanzano and Wright [1], these overall mea-
sures of well-being have an impact on work outcomes. This relation is empirically supported
e.g. by Tsai, Chen, and Liu [112] or Fritz and Sonnentag [113] (see also [114]). One has to
note, however, that the effects are smaller than those between context-specific measures and
work performance. All in all, context-specific and context-free measures of well-being are
overlapping to a large extent [44], which is especially the case for the working context as work
takes a large amount of time. Investing in possibilities to enhance general well-being should
pay off for organizations. Furthermore, the work context can be a place full of opportunities in
order to enhance self-efficacy.
Another possible limitation of this study is the issue of self-report measures and common
method variance [115]. This issue is heavily debated in work and organizational psychology
with unclear results if common method is in fact a problem to the results in this field or how
big the problem might be [116–119]. Even with the open debate we think that it is worth men-
tioning that it could be a possible limitation.
Author Contributions
Conceptualization: Kathrin Heinitz, Timo Lorenz, Julia Schorlemmer.
Data curation: Timo Lorenz, Daniel Schulze.
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 9 / 15
Methodology: Kathrin Heinitz, Timo Lorenz, Daniel Schulze.
Writing – original draft: Kathrin Heinitz, Timo Lorenz, Daniel Schulze, Julia Schorlemmer.
Writing – review & editing: Kathrin Heinitz, Timo Lorenz, Daniel Schulze.
References 1. Cropanzano R, Wright TA. When a "happy" worker is really a "productive" worker: A review and further
refinement of the happy-productive worker thesis. Consulting Psychology Journal: Practice and
Research. 2001; 53(3):182–199. https://doi.org/10.1037//106W087.53.3.182
2. Lucas RE, Diener E. The happy worker: Hypotheses about the role of positive affect in worker produc-
tivity. In: Barrick MR, Ryan AM, editors. Personality and work: Reconsidering the role of personality in
organizations. San Francisco, CA: Jossey-Bass; 2002. P.30–59.
3. Zelenski JM, Murphy SA, Jenkins DA. The happy-productive worker thesis revisited. J HAPPINESS
STUD. 2008; 9(4):521–537.
4. Diener E, Chan MY. Happy people live longer: Subjective well-being contributes to health and longev-
ity. Applied Psychology: Health and Well-Being. 2011; 3(1):1–43.
5. Ilies R, Aw SS, Pluut H. Intraindividual models of employee well-being: What have we learned and
where do we go from here? EUR J WORK ORGAN PSY. 2015; 24(6):827–838.
6. Hobfoll SE. Conservation of resources: A new attempt at conceptualizing stress. AM PSYCHOL. 1989
[cited Nov 2016]; 44(3):513–524. Available from: http://citeseerx.ist.psu.edu/viewdoc/download?doi=
10.1.1.452.8014&rep=rep1&type=pdf https://doi.org/10.1037/0003-066X.44.3.513 PMID: 2648906
7. Demerouti E, Bakker AB, Nachreiner F, Schaufeli WB. The job demands-resources model of burnout.
J APPL PSYCHOL. 2001; 86(3):499–512 PMID: 11419809
8. Sonnentag S, Fritz C. Recovery from job stress: The stressor—detachment model as an integrative
framework. J ORGAN BEHAV. 2015; 36(S1):72–103.
9. Culbertson SS, Fullagar CJ, Mills MJ. Feeling good and doing great: The relationship between psycho-
logical capital and well-being. J OCCUP HEALTH PSYCH. 2010; 15(4):421–433. https://doi.org/10.
1037/a0020720 PMID: 21058856
10. Sin NL, Lyubomirsky S. Enhancing well-being and alleviating depressive symptoms with positive psy-
chology interventions: A practice-friendly meta-analysis. J CLIN PSYCHOL. 2015; 65(5):467–487.
11. Hanssen MM, Vancleef LMG, Vlaeyen JWS, Hayes AF, Schouten EGW, Peters ML. Optimism, moti-
vational coping and well-being: Evidence supporting the importance of flexible goal adjustment. J
HAPPINESS STUD. 2015; 16(6):1525–1537
12. Mills MJ, Fleck CR, Kozikowski A. Positive psychology at work: A conceptual review, state-of-practice
assessment, and a look ahead. The Journal of Positive Psychology. 2013; 8(2):153–164
13. Diener E. Culture and subjective well-being. Champaign, IL: Springer; 2009
14. Seligman ME, Csikszentmihalyi M. Positive psychology: An introduction. Netherlands: Springer;
2014. 279–298p.
15. Luthans F. Positive organizational behavior: Developing and managing psychological strengths.
ACAD MANAGE EXEC. 2002; 16(1):57–72.
16. Luthans F, Youssef CM. Emerging positive organizational behavior. J MANAGE. 2007; 33(3):321–
349.
17. Luthans F, Youssef CM. Human, social, and now positive psychological capital management: Invest-
ing in people for competitive advantage. ORGAN DYM. 2004; 33(2):143–160.
18. Luthans F, Avolio BJ, Walumbwa FO, Li W. The psychological capital of Chinese workers: Exploring
the relationship with performance. MANAGE ORGAN REV. 2005; 1(2):249–271
19. Larson M, Luthans F. Potential added value of psychological capital in predicting work attitudes. Jour-
nal of Leadership & Organizational Studies. 2006; 13(1):45–62.
20. Luthans F, Avey JB, Patera JL. Experimental analysis of a web-based training intervention to develop
positive psychological capital. ACAD MANAG LEARN EDU. 2008; 7(2):209–221.
21. Avey JB, Patera JL, West BJ. (2006). The implications of positive psychological capital on employee
absenteeism. Journal of Leadership & Organizational Studies. 2006; 13(2):42–60.
22. Hobfoll SE. Social and psychological resources and adaptation. REV GEN PSYCHOL. 2002[cited Nov
2016]; 6(4):307–324. Available from: https://www.researchgate.net/profile/Stevan_Hobfoll/
publication/232556057_Social_aan_Psychological_Resources_and_Adaptation/links/
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 10 / 15
5446aca40cf2f14fb81 0b98e/SociSo-and-Psychological-Resources-and-Adaptation.pdf 10.1037//
1089-2680.6.4.307
23. Luthans F, Avolio BJ, Avey JB, Norman SM. Positive psychological capital: Measurement and relation-
ship with performance and satisfaction. PERS PSYCHOL. 2007; 60(3):541–572.
24. Baron RA, Franklin RJ, Hmieleski KM. Why entrepreneurs often experience low, not high, levels of
stress: The joint effects of selection and psychological capital. Journal of Management. 2016; 42
(3):742–768.
25. Bandura A. Self-Efficacy: The exercise of control. New York, NY: W.H. Freeman and Co; 1997.
26. Jerusalem M, Schwarzer R. Self-efficacy as a resource factor in stress appraisal processes. In:
Schwarzer R, editor. Self-efficacy: Thought Control of Action. New York, NY: Taylor & Francis, 1992.
p.195–213
27. Stajkovic AD, Luthans F. Self-efficacy and work-related performance: A meta-analysis. PSYCHOL
BULL. 1998; 124(2):240.
28. Luthans F, Youssef CM, Avolio BJ. Psychological capital: Investing and developing positive organiza-
tional behavior. Positive Organizational Behavior. 2007; 1(2):9–24.
29. Carver CS, Scheier MF, Miller CJ, Fulford D. Optimism. In: Snyder CR, Lopez SJ, editors. The Oxford
handbook of positive psychology. 2nd ed. New York, NY: Oxford University Press; 2009. p.303–311.
30. Luthans F, Avolio BJ, Youssef-Morgan CM. Psychological Capital and beyond. New York, NY: Oxford
University Press. 2015. p.305
31. Scheier ME, Carver CS. Optimism, coping, and health: assessment and implications of generalized
outcome expectancies. HEALTH PSYCHOL. 1985; 4(3);219–247 PMID: 4029106
32. Scheier ME, Carver CS. Dispositional optimism and physical well-being: The influence of generalized
outcome expectancies on health. J PERS. 1987; 55(2):169–210. PMID: 3497256
33. Snyder CR, Irving LM, Anderson JR. Hope and health. In: Snyder CR, Forsyth DR, editors. Handbook
of social and clinical psychology: The health perspective. New York, NY: Pergamon Press; 1991.
p.285–305.
34. Snyder CR. The psychology of hope: You can get there from here. New York, NY: The Free Press;
1994. 428p.
35. Snyder CR, Lopez SJ. The future of positive psychology: A declaration of independence. In: Snyder
CR, Lopez SJ, editors. Handbook of positive psychology. New York, NY: Oxford University Press;
2002. p. 751–767.
36. Snyder CR. Hope theory: Rainbows in the mind. PSYCHOL INQ. 2002; 13(4):249–275.
37. Reichard RJ, Avey JB, Lopez S, Dollwet M. Having the will and finding the way: A review and meta-
analysis of hope at work. The Journal of Positive Psychology. 2013; 8(4):292–304
38. Alarcon GM, Bowling NA, Khazon S. Great expectations: A meta-analytic examination of optimism
and hope. PERS INDIV DIFFER. 2013; 54(7):821–827
39. Bryant FB, Cvengros JA. Distinguishing hope and optimism: Two sides of a coin, or two separate
coins? J SOC CLIN PSYCHOL. 2004; 23(2):273–302
40. Gallagher MW, Lopez SJ. Positive expectancies and mental health: Identifying the unique contribu-
tions of hope and optimism. The Journal of Positive Psychology. 2009; 4(6):548–556
41. Rand KL. Hope and optimism: Latent structures and influences on grade expectancy and academic
performance. J PERS. 2009; 77(1):231–260. https://doi.org/10.1111/j.1467-6494.2008.00544.x
PMID: 19076999
42. Scioli A, Chamberlin CM, Sammor CM, Lapointe AB, Campbell TL, Macleod AR, et al. A prospective
study of hope, optimism, and health. PSYCHOL REP. 1997; 81(3):723–733.
43. Magaletta PR, Oliver JM. The hope construct, will, and ways: Their relations with self—efficacy, opti-
mism, and general well—being. J CLIN PSYCHOL. 1999; 55(5):539–551 PMID: 10392785
44. Pavot W. The assessment of subjective well-being: Successes and shortfalls. In: Eid M, Larsen RJ,
editors. The science of subjective well-being. New York, NY: The Guilford Press; 2008. p.124–140.
45. Diener E. The remarkable changes in the science of subjective well-being. PERSPECT PSYCHOL
SCI. 2013; 8(6):663–666. https://doi.org/10.1177/1745691613507583 PMID: 26173230
46. Xu J, Roberts RE. The power of positive emotions: It’s a matter of life or death—Subjective well-being
and longevity over 28 years in a general population. HEALTH PSYCHOL. 2010; 29(1):9–19. https://
doi.org/10.1037/a0016767 PMID: 20063931
47. Erdogan B, Bauer TN, Truxillo DM, Mansfield LR. Whistle while you work: A review of the life satisfac-
tion literature. J MANAGE. 2012; 38(4):1038–1083
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 11 / 15
48. Tay L, Diener E. Needs and subjective well-being around the world. J PERS SOC PSYCHOL. 2011;
101(2):354–365. https://doi.org/10.1037/a0023779 PMID: 21688922
49. Howell RT, Kern ML, Lyubomirsky S. Health benefits: Meta-analytically determining the impact of well-
being on objective health outcomes. Health Psychology Review. 2007; 1(1):83–136.
50. Keyes CLM. The mental health continuum: From languishing to flourishing in life. J HEALTH SOC
BEHAV. 2002; 43(2):207–222. PMID: 12096700
51. Maddux JE. (2000). Self-efficacy—The power of believing you can. In: Snyder CR, Lopez SJ, editors.
Handbook of Positive Psychology. New York: Oxford University Press; 2009. p.335–345
52. Barlow J, Wright C, Cullen L. A job-seeking self-efficacy scale for people with physical disabilities: Pre-
liminary development and psychometric testing. BRIT J GUID COUNS. 2002; 30(1):37–53.
53. Caprara GV, Steca P, Gerbino M, Paciello M, Vecchio GM. Looking for adolescents’ well-being: Self-
efficacy beliefs as determinants of positive thinking and happiness. EPIDEMIOL PSICHIAT S. 2006;
15(01):30–43.
54. Hampton NZ. Subjective well-being among people with spinal cord injuries: The role of self-efficacy,
perceived social support, and perceived health. REHABIL COUNS BULL. 2004; 48(1):31–37.
55. Kuijer RG, De Ridder DT. Discrepancy in illness-related goals and quality of life in chronically ill
patients: the role of self-efficacy. Psychology and Health. 2003; 18(3):313–330.
56. Lopez SJ, Pedrotti ST, Snyder CR. Positive Psychology. The scientific and practical explorations of
human strengths. 2 nd
ed. Thousad Oaks, CA: SAGE Publications, Inc; 2011. p.598.
57. Bisschop MI, Kriegsman DM, Beekman AT, Deeg DJ. Chronic diseases and depression: the modifying
role of psychosocial resources. SOC SCI MED. 2004; 59(4):721–733. https://doi.org/10.1016/j.
socscimed.2003.11.038 PMID: 15177830
58. Holahan CK, Holahan CJ. Self-efficacy, social support, and depression in aging: A longitudinal analy-
sis. Journal of Gerontology. 1987; 42(1):65–68. PMID: 3794199
59. Maciejewski PK, Prigerson HG, Mazure CM. Self-efficacy as a mediator between stressful life events
and depressive symptoms. BRIT J PSYCHIAT. 2000; 176(4):373–378.
60. Carver CS, Scheier MF, Segerstrom SC. Optimism. CLIN PSYCHOL REV. 2010; 30(7):879–889.
https://doi.org/10.1016/j.cpr.2010.01.006 PMID: 20170998
61. Forgeard MJC, Seligman MEP. Seeing the glass half full: A review of the causes and consequences of
optimism. PRAT PSYCHOL. 2012; 18(2):107–120.
62. Nes LS, Segerstrom SC. Dispositional optimism and coping: A meta-analytic review. PERS SOC PSY-
CHOL REV 2006; 10(3):235–251 https://doi.org/10.1207/s15327957pspr1003_3 PMID: 16859439
63. Sheldon KM, Lyubomirsky S. How to increase and sustain positive emotion: The effects of expressing
gratitude and visualizing best possible selves. The Journal of Positive Psychology. 2006; 1(2):73–82
64. Avey JB, Reichard RJ, Luthans F, Mhatre KH. Meta—analysis of the impact of positive psychological
capital on employee attitudes, behaviors, and performance. Human Resource Development Quarterly.
2011; 22(2):127–152.
65. Avey JB, Luthans F, Smith RM, Palmer NF. (2010). Impact of positive psychological capital on well-
being over time. J OCCUP HEALTH PSYCH. 2010; 15(1):17–28.
66. Coffey L, Gallagher P, Desmond D, Ryall N. Goal pursuit, goal adjustment, and affective well-being fol-
lowing lower limb amputation. BRIT J HEALTH PSYCH. 2014; 19(2):409–424.
67. Rasmussen HN, Wrosch C, Scheier MF, Carver CS. Self-regulation processes and health: the impor-
tance of optimism and goal adjustment. Journal of Personality. 2006; 74(6):1721–1748. https://doi.
org/10.1111/j.1467-6494.2006.00426.x PMID: 17083664
68. Brandtstädter J, Renner G. Tenacious goal pursuit and flexible goal adjustment: explication and age-
related analysis of assimilative and accommodative strategies of coping. PSYCHOL AGING. 1990; 5
(1):58–67 PMID: 2317302
69. Bailly N, Joulain M, Hervé C, Alaphilippe D. Coping with negative life events in old age: The role of
tenacious goal pursuit and flexible goal adjustment. AGING MENT HEALTH. 2012; 16(4):431–437.
https://doi.org/10.1080/13607863.2011.630374 PMID: 22128858
70. Bailly N, Gana K, Hervé C, Joulain M, Alaphilippe D. Does flexible goal adjustment predict life satisfac-
tion in older adults? A six-year longitudinal study. AGING MENT HEALTH. 2014; 18(5):662–670.
https://doi.org/10.1080/13607863.2013.875121 PMID: 24479829
71. Brandtstädter J, Rothermund K. The life-course dynamics of goal pursuit and goal adjustment: A two-
process framework. DEV REV. 2002; 22(1):117–150.
72. Heyl V, Wahl HW, Mollenkopf H. Affective well-being in old age: The role of tenacious goal pursuit and
flexible goal adjustment. EUR PSYCHOL, 2007; 12(2):119–129
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 12 / 15
73. Kelly RE, Wood AM, Mansell W. Flexible and tenacious goal pursuit lead to improving well-being in an
aging population: a ten-year cohort study. INT PSYCHOGERIATR. 2013; 25(01):16–24.
74. Janse M, Sprangers MA, Ranchor AV, Fleer J. Long-term effects of goal disturbance and adjustment
on well-being in cancer patients. QUAL LIFE RES. 2016; 25(4):1017–1027. https://doi.org/10.1007/
s11136-015-1139-8 PMID: 26446093
75. Van Damme S, De Waegeneer A, Debruyne J. (2016). Do flexible goal adjustment and acceptance
help preserve quality of life in atients with multiple sclerosis? INT J BEHAV MED. 2016; 23(3):333–
339. https://doi.org/10.1007/s12529-015-9519-6 PMID: 26590139
76. Trépanier L, Lapierre S, Baillargeon J, Bouffard L. Ténacité et flexibilité dans la poursuite de projets
personnels: Impact sur le bien-être à la retraite. CAN J AGING. 2001; 20(04):557–576 77. Brandtstädter J, Rothermund K, Kranz D, Kühn W. Final decentrations. EUR PSYCHOL. 2010; 15
(2):152–163.
78. Brandtstädter J. Personal control over development: Some developmental implications of self-effi-
cacy. In: Schwarzer R, editor. Self-efficacy: Thought control of action London, UK: Routledge; 1992.
p. 127–145.
79. Engstler H, Motel-Klingebiel A. Datengrundlagen und Methoden des deutschen Alterssurveys
(DEAS). In: Motel-Klingebiel A, Wurm S, Tesch-Römer C, editors. Altern im Wandel. Befunde des
Deutschen Alterssurveys (DEAS). Stuttgart, GER: Kohlhammer; 2010. p.34–60.
80. Blom AG, Schröder M. Sample composition 4 years on: retention in SHARE Wave 3. In: Schröder M,
editor. SHARELIFE Methodology. Mannheim, GER: Mannheim Research Institute fort he Economics
of Ageing (MEA); 2011. p.55–61
81. Schwarzer R, Jerusalem M. Generalized self-efficacy scale. In: Weinman J, Wright S, Johnston M,
editors. Measures in health psychology: A user’s portfolio. Causal and control beliefs. Windsor, UK:
NFER-NELSON; 1995. p.35–37.
82. Brandtstädter J, Wentura D. Veränderungen der Zeit- und Zukunftsperspektive im Übergang zum
höheren Erwachsenenalter: Entwicklungspsychologische und differentielle Aspekte. Z ENTWICKL
PADAGOGIS. 1994; 26(1):2–21.
83. Snyder CR, Harris C, Anderson JR, Holleran SA, Irving LM, Sigmon ST, et al. The will and the ways:
Development and validation of an individual-differences measure of hope. J PERS SOC PSYCHOL.
1991; 60(4):570–585. PMID: 2037968
84. Brandtstädter J, Renner G. Tenacious goal pursuit and flexible goal adjustment: Explication and age-
related analysis of assimilative and accommodative strategies of coping. PSYCHOL AGING. 1990; 5
(1):58–67. PMID: 2317302
85. Schumacher J. SWLS. Satisfaction with life scale. Göttingen, GER: Hogrefe für Psychologie; 2003.
p.329.
86. Watson D, Clark LA, Tellegen A. Development and validation of brief measures of positive and nega-
tive affect: the PANAS scales. J PERS SOC PSYCHOL. 1988; 54(6):1063–1070. PMID: 3397865
87. Pavot W, Diener E. Review of the satisfaction with life scale. PSYCHOL ASSESSMENT. 1993; 5
(2):164–172.
88. Hautzinger M, Bailer M, Hofmeister D, Keller F. Allgemeine Depressionsskala (ADS). PSYCHIAT
PRAX. 2012; 39(06):302–304.
89. Pinquart M, Sörensen S. Gender differences in self-concept and psychological well-being in old age: a
meta-analysis. J GERONTOL B-PSYCHOL. 2011; 56(4):195–213.
90. Pinquart M, Sörensen S. Influences of socioeconomic status, social network, and competence on sub-
jective well-being in later life: a meta-analysis. PSYCHOL AGING. 2000; 15(2):187–224. PMID:
10879576
91. Mackenbach JP, Kunst AE, Cavelaars AE, Groenhof F, Geurts JJ, EU Working Group on Socioeco-
nomic Inequalities in Health. Socioeconomic inequalities in morbidity and mortality in Western Europe.
LANCET. 319997; 49(9066):1655–1659.
92. Von dem Knesebeck O, Lüschen G, Cockerham WC, Siegrist J. Socioeconomic status and health
among the aged in the United States and Germany: a comparative cross-sectional study. SOC SCI
MED. 2003; 57(9):643–1652.
93. Ganzeboom HB, De Graaf PM, Treiman DJ. A standard international socio-economic index of occupa-
tional status. SOC SCI RES. 1992; 21(1):1–56.
94. Lantz PM, Lynch JW, House JS, Lepkowski JM, Mero RP, Musick MA, et al. Socioeconomic disparities
in health change in a longitudinal study of US adults: the role of health-risk behaviors. SOC SCI MED.
2001; 53(1):29–40. PMID: 11380160
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 13 / 15
95. Feinstein JS. The relationship between socioeconomic status and health: a review of the literature.
The Milbank Quarterly. 1993; 71(2):279–322. PMID: 8510603
96. Baum A, Garofalo JP, Yali A. Socioeconomic status and chronic stress: does stress account for SES
effects on health? ANN NY ACAD SCI. 1999; 896(1):131–144.
97. Wurm S, Tomasik MJ, Tesch-Römer C. Serious health events and their impact on changes in subjec-
tive health and life satisfaction: The role of age and a positive view on ageing. EUR J AGEING. 2008; 5
(2):117–127. https://doi.org/10.1007/s10433-008-0077-5 PMID: 28798566
98. Finney SJ, DiStefano C. Non-normal and categorical data in structural equation modeling. In: Hancock
GR, Mueller RO, editors. Structural equation modeling: A second course. Charlotte, NC: Information
Age Publishing; 2013. p.269–314.
99. Hu LT, Bentler PM. Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria
versus new alternatives. STRUCT EQU MODELING. 1999; 6(1):1–55.
100. R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Com-
puting, Vienna, Austria, 2012. [updated 2014, cited Nov 2016]. Available from: http://www.R-project.org/.
101. Rosseel Y. lavaan: An R package for structural equation modeling. J STAT SOFTW. 2012; 48(2):1–
36.
102. Clum GA, Rice JC, Broussard M, Johnson CC, Webber LS. (2014). Associations between depressive
symptoms, self-efficacy, eating styles, exercise and body mass index in women. J BEHAV MED.
2014; 37(4):577–586. https://doi.org/10.1007/s10865-013-9526-5 PMID: 23934179
103. Lorenz T, Beer C, Pütz J, Heinitz K. (2016). Measuring psychological capital: Construction and valida-
tion of the compound PsyCap scale (CPC-12). PloS one. [Internet]. 2016 Apr [cited Nov 2016]; 11(4).
Available from: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0152892
104. Benyamini Y, Roziner I. The predictive validity of optimism and affectivity in a longitudinal study of
older adults. PERS INDIV DIFFER. 2008; 44(4):853–864.
105. Muris P. Relationships between self-efficacy and symptoms of anxiety disorders and depression in a
normal adolescent sample. PERS INDIV DIFFER. 2002; 32(2):337–348.
106. Liu L, Gou Z, Zuo J. Social support mediates loneliness and depression in elderly people. J HEALTH
PSYCHOL. 2014; 21(5):750–758 https://doi.org/10.1177/1359105314536941 PMID: 24925547
107. Luthans F, Avey JB, Avolio BJ, Peterson SJ. The development and resulting performance impact of
positive psychological capital. Human Resource Development Quarterly. 2010; 21(1):41–67.
108. Manuti A, de Palma PD. Digital HR. Cham, CH: Palgrave Macmillan; 2018 [cited 2018 March 07]. 85
p. Available from: https://www.palgrave.com/gb/book/9783319602097. https://doi.org/10.1007/978-3-
319-60210-3
109. Siegrist J, Wahrendorf M, Von Dem Knesebeck O, Jürges H, Börsch-Supan A. Quality of work, well-
being, and intended early retirement of older employees—baseline results from the SHARE Study.
EUR J PUBLIC HEALTH. 2007; 17(1):62–68. https://doi.org/10.1093/eurpub/ckl084 PMID: 16777840
110. McNulty JK, Fincham FD. Beyond positive psychology? Toward a contextual view of psychological
processes and well-being. AM PSYCHOL. 2012; 67(2):101–110. https://doi.org/10.1037/a0024572
PMID: 21787036
111. McNulty JK, Fincham FD. The pitfalls of valenced labels and the benefits of properly calibrated psy-
chological flexibility. AM PSYCHOL. 2012; 67(7):576–577.
112. Tsai W-C, Chen C-C, Liu H-L. Test of a model linking employee positive moods and task performance. J
APPL PSYCHOL. 2007; 92(6):1570–1583. https://doi.org/10.1037/0021-9010.92.6.1570 PMID: 18020797
113. Fritz C, Sonnentag S. Antecedents of day-level proactive behavior: A look at job stressors and positive
affect during the day. J MANAGE. 2009; 35(1):94–110.
114. Warr P, Nielsen K. (2018). Wellbeing and work performance. In: Diener E, Oishi S. Tay L, editors.
Handbook of well-being. [Internet] Salt Lake City, UT: DEF Publishers; 2018. [cited 2018 March 07]
960p. Available from: https://www.nobascholar.com/books/1
115. Podsakoff PM, MacKenzie SB, Lee J-Y, Podsakoff NP. Common method biases in behavioral
research: a critical review of the literature and recommended remedies. J APPL PSYCHOL. 2003; 88
(5):879–903. https://doi.org/10.1037/0021-9010.88.5.879 PMID: 14516251
116. Lance CE, Dawson B, Birkelbach D, Hoffman BJ. Method effects, measurement error, and substantive
conclusions. ORGAN RES METHODS. 2010; 13(3):435–455.
117. Pace VL. Method variance from the perspectives of reviewers: Poorly understood problem or overem-
phasized complaint? ORGAN RES METHODS. 2010; 13(3):421–434.
118. Spector PE. Method variance in organizational research truth or urban legend? ORGAN RES METH-
ODS. 2006; 9(2):221–232.
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 14 / 15
119. Spector PE, Brannick MT. Common method issues: An introduction to the feature topic in organiza-
tional research methods. ORGAN RES METHODS. 2010; 13(3):403–406. https://doi.org/10.1177/
1094428110366303
Longitudinal effects on well-being
PLOS ONE | https://doi.org/10.1371/journal.pone.0198588 June 22, 2018 15 / 15
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