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The Journal of Psychology, 2015, 149(2), 161–174 Copyright C© 2015 Taylor & Francis Group, LLC

doi: 10.1080/00223980.2013.853020

Incidence of Behavior Problems in Toddlers and Preschool Children

from Families Living in Poverty

CASEY A. HOLTZ Wisconsin Lutheran College

ROBERT A. FOX Marquette University

JOHN R. MEURER Medical College of Wisconsin

ABSTRACT. Few studies have examined the incidence of behavior problems in toddlers and preschool children from families living in poverty. The available research suggests behavior problems occur at higher rates in children living in poverty and may have long- term negative outcomes if not identified and properly treated. This study included an ethnically representative sample of 357 children, five years of age and younger, from a diverse, low-income, urban area. All families’ incomes met the federal threshold for living in poverty. Behavior problems were assessed by parent report through a questionnaire specifically designed for low-income families. Boys and younger children were reported as demonstrating a higher rate of externalizing behaviors than girls and older children. The overall rate of children scoring at least one standard deviation above the sample’s mean for challenging behaviors was 17.4% and was not related to the child’s gender, age or ethnicity. This study also sampled children’s positive behaviors, which is unique in studies of behavior problems. Gender and age were not related to the frequency of reported positive behaviors. Ethnicity did influence scores on the positive scale. African American children appeared to present their parents more difficulty on items reflecting cooperative behaviors than Caucasian or Latino children. The implications of the study are discussed based on the recognized need for universal screening of behavior problems in young children and the small number professional training programs targeting the identification and treatment of early childhood behavior problems, despite the availability of evidence-based treatment programs tailored to young children in low-income families.

Keywords: behavior problems, poverty, toddlers and preschooler children

Address correspondence to Robert A. Fox, Ph.D. Marquette University, Department of Counselor Education and Counseling Psychology, P. O. Box 1881, Milwaukee, WI 53201- 1881, USA; [email protected] (e-mail).

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162 The Journal of Psychology

BEHAVIOR PROBLEMS IN TODDLERS AND PRESCHOOLERS have been a recent focus in the literature due to the growing recognition of disruptive be- haviors occurring in this younger population (Biglan, Mrazek, Carnine, & Flay, 2003), the nontransient nature of these problem behaviors for some young chil- dren (Briggs-Gowan, Carter, Bosson-Heenan, Guyer, & Horwitz, 2006), and the impairments they may cause in these young children’s social, family, and future academic functioning (Campbell, 2002). Although the body of research on early childhood behavior problems has grown substantially (Egger & Angold, 2006), there is a paucity of research that specifically addresses low-income and minority populations. This relative lack of attention to poverty as a potentially contributing factor to young children’s challenging behaviors is problematic given the large number of risk factors present in many of these families. When lower socioe- conomic status (SES) is included as a contextual variable in studies, it consis- tently places children at increased risk for the development of behavior problems (Chapman, Dube, & Anda, 2007; van Oort, van der Ende, Wadsworth, Verhulst, & Achenbach, 2011). Low-income families are at higher risk for family and social stressors (e.g., job loss, poor quality child care, inadequate supervision, unad- dressed medical issues, maternal mental health issues, and unsafe neighborhoods) which in turn, negatively impact parenting practices that have been found to be related to the development and exacerbation of behavior problems in children (Linver, Brooks-Gunn, & Kohen, 2002; Qi & Kaiser, 2003). Knowing the preva- lence of early childhood disruptive behavior problems in this population is an important first step towards better understanding the nature and scope of these behavior problems in this already at-risk group of children.

Challenging behaviors including noncompliance, limited emotional regula- tion (severe tantrums), property destruction, self-injury and aggression are com- mon during early childhood (Wakschlag et al., 2007). At times, these challenging behaviors can reach a level of intensity and frequency that may require profes- sional attention. Incidence rates of behavior problems in early childhood that rise to clinical levels have been established within the general population of preschool children and range between 8–17% (Briggs-Gowan, Carter, Skuban, & Horwitz, 2001; Egger & Angold, 2006; Furniss, Beyer, & Guggenmos, 2006; Lavigne, LeBailly, Hopkins, Gouze, & Binns, 2009). In comparison, fewer studies pro- vide incidence rates for low-income populations. Del’Homme, Sinclair, Kasari, & Sigman (1994) found 23% of the 42 preschool children in their small Head Start sample (29% African American, 71% Latino; 95% government assistance; 63% males) were at risk for behavior problems. Feil, Walker, Severson, and Ball (2000) surveyed 954 parents of children (3–4 years old) enrolled in Head Start and found 52% of the children met criteria for referral to mental health services for behavior and emotional problems. Other studies have reported a range of 20–33% for behavior problems in young children from lower SES backgrounds (Gross, Sambrook, & Fogg, 1999; Kaiser, Hancock, Cai, Foster, & Hester, 2000). Most

Holtz et al. 163

available studies that have included poverty as a contextual variable in the de- velopment and maintenance of behavior problems in young children have tended to examine children in special programs such as Head Start or in clinic-referred samples. The present study was designed to establish baseline rates of behav- ior problems in a representative urban sample of toddlers and preschoolers from low-income families.

Given the paucity of literature that addresses behavior problems in young children from impoverished backgrounds, we did not generate specific hypotheses for this study. Instead, the following general research questions were developed to guide the analyses of the data: 1) how often do challenging behaviors occur in young children from low-income families; 2) do rates of challenging behaviors in low-income populations vary based on the child’s gender, ethnicity, or age; and 3) how many young children have behavior problems at the upper end of the frequency continuum that could benefit from further evaluation and possible intervention?

Method

Participants The sample was comprised of 357 children between 1–5 years of age with

both genders well represented (167 girls; 190 boys). An effort was made to obtain a stratified, representative sample based on the family’s race in comparison to avail- able population statistics from a large, Midwestern, urban area (DeNavas-Walt, Proctor, Smith, & U.S. Census Bureau, 2008). The primary site for this project was a health clinic in an urban children’s hospital that annually served over 1,500 young children from low-income families. Approximately 90% of our sample was obtained from this setting. The remaining children were obtained from three early childhood education centers (8%) and one day care and one birth-to-three agency (2%). Research assistants were available at the primary hospital site dur- ing two separate time frames (8:00–11:30 a.m.; 1:00–4:00 p.m.) three days each week (Monday, Wednesday, and Thursday) to increase the representativeness of the sample. During these periods, all parents and caregivers of children five years of age and younger were approached to participate in this study. Data collection at school and community sites occurred during parent orientation meetings or community events.

Because the goal of this study was to identify behavior problems in a de- velopmentally healthy sample of low-income children, children with significant developmental, physical or health disabilities such as autism, cerebral palsy, or significant medical illnesses were excluded from the study after prescreening. Children with caregivers who could not speak English were also excluded.

Children were approximately equally distributed in terms of child gender (46.8% girls). The mean age of children was 3.56 years old (SD = 1.26).

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TABLE 1. Ethnic Demographics of Study Sample and Low-Income Midwestern Urban Population of Families With Young Children (U.S. Census Data, 2000)

Sample: Child Sample: Parent Population: Urban Child and Adult

Black 207 (58.0%) 209 (58.5%) 53,504 (57%) White 93 (26.1%) 96 (26.9%) 23,872 (25%) Hispanic 55 (15.4%) 50 (14.0%) 15,039 (16%) Other 2 (0.5%) 2 (0.5%) 1,787 (1.8%) Total 357 357 94,202

The ethnic demographic characteristics of the sample closely matched those of the low-income, large Midwestern urban population (DeNavas-Walt et al., 2008) from which they were drawn (see Table 1); 74% of children were members of ethnic minority groups. The children’s primary caregivers (i.e., respondents) were mostly female (n = 320, 89.6%). Caregiver ages ranged from 15–65 years (M = 28.06, SD = 7.66). Caregiver education levels ranged from 8–18 years of school (M = 12.72, SD = 1.84); family size varied from one to eight children with a mean family size of 2.73 children (SD = 1.49).

The families’ low-income status was defined as their total annual income falling below the poverty threshold based on the size of the family and the num- ber of related children less than 18 years of age living in the home (U.S. Census Bureau, 2002). All families in the present study met the federal criteria for poverty; 38.1% reported an annual household income of less than $10,000; 26.9% earned $10,000–$19,000; 22.1% earned $20,000–$29,000; and the remaining 12.9% in- dicated an annual family income above $30,000.

Procedures This study was reviewed and approved by the Internal Review Boards of both

the second and third authors’ institutions (the first author was a doctoral student at the second author’s institution at the time of data collection for this study). Parents willing to participate were asked to sign two informed consent forms for the study, one from each participating institution, and were given the opportunity to ask the research assistants questions. For parents younger than 18 years old, their legal guardians’ informed consent was obtained. Consenting caregivers completed a demographic form and the Early Childhood Behavior Screen (Holtz & Fox, 2012). Researchers read the items to parents unless the parent expressed the desire to complete the survey independently. Upon completion of the survey, each family received a five-dollar gift certificate for a local grocery store and a children’s book. Parents who expressed concerns about their children’s behavior or scored at least one standard deviation above the mean on the ECBS’ Challenging Behavior Scale

Holtz et al. 165

were provided information about a local mental health clinic that specialized in serving young children from families in poverty (Fox, Keller, Grede, & Bartosz, 2007).

Measures Demographic Questionnaire

The demographic questionnaire included the child’s date of birth, ethnicity and gender, along with parent gender, age, ethnicity, and education level. The parents were also asked to indicate the number of children living in the home and the total household income, which were presented in $10,000 ranges.

Early Childhood Behavior Screen (ECBS) The current study was part of a larger field-testing of the ECBS. The present

study included only families who met the criteria for living in poverty. The original study (Holtz & Fox, 2012) included families from all income levels. The ECBS is a 20 item self-report instrument developed specifically for toddlers and preschool children from low-income backgrounds. Items were developed to measure both prosocial (positive behavior scale - 10 items) and challenging behaviors of early childhood (challenging behavior scale - 10 items) and were written at a 3.9 grade level. Caregivers rated each item based on their perception of their child’s behavior over the past week using a three-point Likert rating scale (1 = almost never, occurs rarely or never; 2 = sometimes, occurs weekly; 3 = almost always, occurs at least daily). Total scores on the challenging behavior scale ranged from 10 to 30 with higher scores indicating a higher frequency of challenging behaviors; total scores on the positive behavior scale had the same range with higher scores indicating a higher frequency of positive behaviors.

Field-testing of the ECBS was conducted with a representative, diverse sample of 439 parents from an urban community. Examination of reliability of the ECBS in the original field-testing study found the Challenging Behavior Scale (.87) and Positive Behavior Scale (.92) obtained good levels of internal consistency. The 10-item Challenging Behavior Scale demonstrated adequate levels of concurrent validity (r = .75) with the Eyberg Child Behavior Inventory (ECBI; Eyberg & Pincus, 1999), a 36-item measure that assesses common behavior problems in children (ages 2–16). The ECBS Challenging Behavior Scale acquired adequate levels of sensitivity (82%) and specificity (80%) based on its relationship with the Eyberg Child Behavior Inventory. For the present sample, the reliability of the Challenging Behavior Scale was .86 and .94 for the Positive Behavior Scale.

Results

Table 2 presents the percentage, means, and standard deviations for each of the items on the ECBS’ Challenging and Positive Behavior Scales for the present

166 The Journal of Psychology

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Holtz et al. 167

sample by ethnic group. This table provides data relevant for the first research question regarding what behavior problems and how often they occurred in this sample of young children based on their parents’ perceptions. Based on the mean item scores for the Challenging Behavior items, temper tantrums, bothers others, hits others, takes toys away from others, and refuses to go to bed appear to be the most common challenging behaviors for their parents. Mean scores on the positive behavior items tended to be higher than the challenging behaviors.

Challenging Behaviors Items A series of chi-square analyses were computed to identify associations be-

tween the children’s gender and ethnicity (African American, Caucasian, Latino) and the frequency of their challenging behaviors (i.e., almost never, sometimes, often). For purposes of interpretation, the percentage of parents who rated their children’s challenging behaviors as occurring sometimes or often was combined. The following significant gender differences were found for challenging behav- iors: throws things at others [χ 2 (2, 357) = 9.80, p = .007] [60% boys; 43% girls]; and kicks others [χ 2 (2, 357) = 9.02, p = .01] [25% girls; 40% boys]. The following significant ethnic difference was found for challenging behaviors among African American (AA), Caucasian (C) and Latino (L) children: takes toys away from others [χ 2 (3, 357) = 10.11, p = .04] [C = 76%, AA = 60%, L = 51%]. In order to compare the parents’ ratings on individual items of the ECBS based on their children’s age, we used a median split of the children’s ages to create a younger and older group. The median age for the sample was 3.71 years. T-tests were used to determine differences in scores on the Challenging Behavior Scale items. Significant differences were found for six of the ten items: hits others [t(351) = 2.81, p = .005] (younger M = 1.87, SD = 0.70; older M = 1.66, SD = 0.68); throws things at others [t(351) = 3.90, p < .001] (younger M = 1.79, SD = 0.71; older M = 1.51, SD = 0.66); has temper tantrums [t(351) = 3.32, p = .001] (younger M = 2.03, SD = 0.65; older M = 1.80, SD = 0.66); hurts others [t(351) = 2.04, p = .042] (younger M = 1.41, SD = 0.62; older M = 1.28, SD = 0.53); takes toys away from others [t(351) = 4.52, p < .001] (younger M = 1.91, SD = 0.65; older M = 1.60, SD = 0.65); and kicks others [t(351) = 2.09, p = .037] (younger M = 1.47, SD = 0.66; older M = 1.34, SD = 0.57).

Positive Behavior Items A second series of chi-square analyses were computed to identify associa-

tions between the child’s gender and ethnicity and the frequency of their positive behaviors. For purposes of interpretation, the percentage of parents who rated their children’s positive behaviors as occurring sometimes or often was combined. There were no significant relationships found between the child’s gender and items on the ECBS positive scale. There were several relationships found between the children’s’ ethnicity and the caregivers’ rating of positive behaviors including: eats with a spoon [χ 2 (3, 357) = 20.05, p < .001] [56% AA, 74% L, 81% C];

168 The Journal of Psychology

listens to you [χ 2 (3, 357) = 14.39, p = .006] [36% AA, 78% L, 84% C]; under- stands you [χ 2 (3, 357) = 24.33, p < .001] [60% AA, 76% L, 84% C]; does what you ask [χ 2 (3, 357) = 17.22, p = .002] [70% AA, 73% L, 84% C]; plays well with others [χ 2 (3, 357) = 10.57, p = .03] [67% A, 76% L, 81% C]; sleeps through the night [χ 2 (3, 357) = 16.52, p = .002] [61% AA, 82% L, 80% C]; helps others [χ 2 (3, 357) = 10.01, p = .04] [69% AA, 82% L, 80% C]; eats well [χ 2 (3, 357) = 17.23, p = .002] [65% AA, 82% L, 85% C]; and cooperates in getting dressed [χ 2 (3, 357) = 27.71, p < .001] [59% AA, 76% L, 82% C]. In order to explore a possible age explanation of these ethnic differences, an analysis of variance was calculated between the three ethnic groups by the children’s chronological age. A significant age effect was found [F (2, 354) = 4.81, p = .009]. Scheffe’s post hoc test showed that AA children were significantly (p = .012) older (M = 3.72 years, SD = 1.23) than C children (M = 3.26 years, SD = 1.24); L children’s ages (M = 3.43 years, SD = 1.30) did not differ from either AA or C children. Using a t-test to compare younger and older children based on the median split age of 3.71 years, there were no significant differences between the younger or older children on any of the Positive Behavior Scale items.

Analyses of Total Scores for the ECBS Challenging and Positive Behavior Scales

Total scores were computed for the ECBS Challenging Behavior and Positive Behavior scales. To compare children’s ratings on the ECBS total Challenging Behavior scores based on their gender, t-tests were computed. Boys received sig- nificant higher scores [t (355) = 2.60, p = .01] (M = 17.02, SD = 4.54) than females (M = 15.83, SD = 4.03); boys and girls did not differ on the Positive Behavior scale. Separate analyses of variance (ANOVA) were computed with total scores on the Challenging and Positive Behavior scales by the children’s ethnicity. A significant effect was found for the Positive Behavior scale [F (2, 354) = 9.68, p < .001] but not for the Challenging Behavior Scale. Scheffe’s post hoc test showed that African American children received significantly lower parental rat- ings on the Positive Behavior scale (M = 19.91, SD = 6.88) than either Caucasian (M = 22.98, SD = 5.28, p = .001) or Latino children (M = 22.98, SD = 6.99, p = .008); the latter two groups did not differ from each other. A median split was again used to divide the children into a younger and older group. The median age for the sample was 3.71 years. To compare younger and older children on the ECBS scales, t-tests were used. The results showed that younger children had significant higher scores on the Challenging Behavior scale [t (355) = 3.07, p = .002] (M = 17.16, SD = 4.27) than the older children (M = 15.76, SD = 4.32); the younger and older children did not differ on the Positive Behavior scale. It is often customary in clinical settings to identify children in potential need of further, more comprehensive evaluations for possible mental health services if they score

Holtz et al. 169

at least a standard deviation above the mean (approximately the 85th percentile) on a measure of externalizing behavior problems (Achenbach, 1991). Using this approach for the ECBS Challenging Behavior scale, the cutoff raw score for one standard deviation above the samples mean score was 20.81. Based on our sample, 17.4% met or exceeded this cutoff score. Based on a series of chi square analyses using this cutoff score (met or did not meet it) and the children’s gender, ethnicity, and age (younger, older), no significant relationships between these demographic variables and meeting or exceeding the cutoff score were found (all ps > .05).

Discussion

This study investigated the frequency of behavior problems in an ethnically diverse, representative, Midwestern sample of children between one and five-years of age who were living below the federally-defined threshold for poverty. When combining parent ratings of sometimes and often, the frequency of externalizing behaviors such as tantrums, bothering or hitting others was common in this sample (60% or higher). The higher rate of challenging behavior in low-income popu- lations is most likely due to a combination of family and environmental factors. Developmental studies of behavior problems suggest the child’s temperament in combination with environment factors leads to the development and exacerbation of behavioral difficulties (Rutter, 2000, 2003, 2005). There is no evidence that children from low-income families have a genetic predisposition to develop a more challenging temperament than that of children from middle or higher in- come families. There are, however, a number of environmental factors related to living in poverty that may have adverse implications for low-income children. For example, low-income families are at higher risk for job loss, poor child care, inadequate supervision, and maternal mental health issues which in turn, may neg- atively impact the caretakers’ ability to provide nurturing and stable environment for their children (Gross, Shaw, Burwell, & Nagin, 2009; Linver et al., 2002; Qi & Kaiser, 2003). These and other risk factors related to poverty (e.g., premature birth, malnutrition, harsher parenting practices, single headed households, marital conflict, and poorer quality schools) compound a child’s risk for the development of behavior problems and makes the child more susceptible to negative outcomes (Chapman et al., 2007; Rutter, 2000).

Gender differences were found in the present study with boys demonstrat- ing higher rates of externalizing behaviors. This finding is consistent with prior research suggesting that gender differences in behavior problems are notable in early childhood with boys being more likely to engage in externalizing behaviors (Baillargeon et al., 2007; Mesman, Bongers, & Koot, 2001). Previous studies also have indicated challenging behaviors occur at different rates based on a child’s age and developmental level (Campbell, 2002) with externalizing behaviors gradually diminishing over time (Fanti & Henrich, 2010). In the current study, and consistent

170 The Journal of Psychology

with the literature, younger children received higher scores on six of the ten items on the Challenging Scale than older children. Last, ethnicity does not appear to play a significant role in early child behavior problems with only one challenging behavior identified as significant (takes toys away from others). Given that we did not collect information on how many children were involved in programs outside of their home (e.g., Head Start, day cares), this finding may reflect an artifact of each group’s level of external involvement and would require additional research to ferret out.

This study also focused on the children’s positive behaviors, an area often ignored in studies of young children’s behavior problems. The results suggested that normal developmental behaviors expected as children mature were present in this sample at relatively high rates (e.g., eats with a spoon, understands you, helps others) and were not related to the child’s gender or age. Ethnicity did appear to be a significant factor in children’s positive behaviors. However, African American children were significantly older than Caucasian but not Latino children. Some of the items on the Positive Scale appear to be developmental in nature. Consequently, as children mature, a parent is more likely to rate items such as eats with a spoon or cooperates in getting dressed as never occurring because the children use other eating utensils and get dressed on their own. For the items that reflected more positive behaviors that would be less developmentally related, fewer African American children appeared to cooperate as well with their caregivers (listens to you, understands you, does what you ask, sleeps through the night) as Caucasian or Latino counterparts. While the older age of the African American children and the higher percentage of African Americans in the sample could be possible factors, perhaps the parenting practices of African American participants differ in that less attention is provided young children for exhibiting positive behaviors. Clearly, the role of ethnicity in the development of positive behaviors in young children deserves further study.

Last, using an 85th percentile cutoff score to identify children, whose chal- lenging behaviors were more frequent, 17.4% of the sample, met this criterion. This rate of behaviors is at the higher end of rates reported in the literature for younger children with “clinical levels” of externalizing behaviors (Briggs-Gowan et al., 2001; Egger & Angold, 2006; Furniss et al., 2006; Lavigne et al., 2009) and was not related to the present sample’s age, gender, or ethnicity. When com- pared to samples of low-income children reported in the literature, our 17.4% rate is relatively low (e.g., Del’Homme et al., 1994: 23%; Feil et al., 2000: 52%), but is closer to the reported range of 20–33% for behavior problems in young children from lower SES backgrounds (D. Gross et al., 1999; Kaiser et al., 2000). It is likely that the sampling methods, definitions of clinical behavior prob- lems, and measurement tools contributed to the variance in finding across studies. However, what is clear is the finding that poverty is an important contextual fac- tor in the development of higher levels of significant behavior issues in young children.

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Limitations There were a number of limitations in the present study. While the sample did

closely represent the population it was selected from, it was a convenience sample from a minimum number of sites and therefore could be influenced by selection bias. The study did not include caregivers who were non-English Speakers. The study was based on parental self-report and relied on a relatively brief screening tool for identifying challenging behaviors in young children. Parent surveys, how- ever, are often the primary means to obtain information regarding child behavior. Behavior rating measures require parents to make judgments about their child’s level of behavioral functioning, but they can also be accurate predictors of behav- ior problems in children (Bergman, 2004). However, more extensive evaluations would be warranted, particularly for children scoring at the higher end of the challenging behavior range, to determine if a clinical diagnosis was warranted and treatment was needed. We also computed several separate analyses of individual child behaviors which increases the chance of finding significance (Type I error). Last, we collapsed parents’ ratings of “sometimes” and “often” in our analyses.

Implications This study along with the existing literature suggests behavior problems are

frequent in early childhood and may occur at higher rates in low-income popu- lations. Unfortunately, existing research on treatment provision has found only a small percentage of children who need mental health services actually obtain them (e.g., Lavigne et al., 2009). This ongoing issue has at least three contributing fac- tors: 1) the lack of universal screening for behavior problems in young children; 2) the small number of mental health training programs that address young children resulting in relatively few professionals who can competently address behavioral concerns in these families; and 3) the limited number of evidence-based programs for addressing behavior problems in children living in poverty that have been suc- cessfully extended to community-based settings (Fox & Holtz, 2009; Fox, Mattek, & Gresl, 2013). Clearly, more attention needs to be paid to our most vulnerable young children to prevent them from continuing to experience significant behavior problems that are likely to persist and even escalate well beyond early childhood.

AUTHOR NOTES

Casey A. Holtz is an assistant professor of psychology at Wisconsin Lutheran College. His current research interests are early childhood, behavioral challenges, parenting, child development, and divorce adjustment. Robert A. Fox is a pro- fessor of counseling psychology at Marquette University. His current research interests are behavior problems in young children, parent and child therapy, and developmental disabilities. John R. Meurer is professor and director, Institute

172 The Journal of Psychology

for Health and Society, Medical College of Wisconsin. His current research inter- ests are population health improvement, diabetes and asthma control, obesity, and violence prevention.

FUNDING

This research was supported in part from grants from the Greater Milwaukee Foundation and the Exchange Clubs of Greater Milwaukee Charitable Foundation. The authors acknowledge the support of the physicians and staff of the Downtown Health Center and Penfield Children’s Center.

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Original manuscript received January 26, 2013 Final version accepted October 4, 2013

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