PSYC 355
Factual
Informative
Scenario
Anecdotal
“Identifiable
Victim” Scenario
25
10
25
15
30
20
10
15
45
15
35
35
30
50
45
30
1. Paste SPSS output. (10 pts)
Group Statistics
Group_1_K
S N Mean Std. Deviation
Std. Error
Mean
Group_2_K
S
Factual 8 18.75 7.440 2.631
Anecdotal 8 35.63 11.160 3.946
Problem Set 1: The independent-samples t test
Research Scenario: A social psychologist working for a marketing department wants to
study the effect of scenario descriptions on charitable giving to a child hunger organization.
He devises two scenarios: one in which an employee of the charity describes child hunger
using facts and information (Group 1), and one in which an employee of the charity describes
child hunger using an anecdotal example with one “identifiable victim” (Small, 2016) (Group
2). Eight people are interviewed in each group. After hearing the employee read the child
hunger scenario, the participants are then asked to state how much money they would donate
to the charity to help end child hunger. The data appear in the table below.
Using this table, enter the data into a new SPSS data file and run an independent-
samples t test to determine to determine whether there is a difference in the amount of
money donated between the two groups. Remember to put your initials within any and all
variable names. Create a boxplot to show the difference between the groups. Follow the
directions below the table to complete this problem set.
PSYC 355
Independent Samples Test
Levene'
s Test
for
Equality
of
Varianc
es t-test for Equality of Means
F
Sig
. t df
Significan
ce
Mean
Differen
ce
Std.
Error
Differen
ce
95%
Confidence
Interval of
the
Difference
One
-
Side
d p
Two
-
Side
d p
Lowe
r
Upp
er
Group_2_
KS
Equal
varianc
es
assume
d
.58
0
.45
9
-
3.55
8
14 .002 .003 -16.875 4.742 -
27.04
6
-
6.70
4
Equal
varianc
es not
assume
d
-
3.55
8
12.19
6
.002 .004 -16.875 4.742 -
27.18
9
-
6.56
1
2. Write an APA-style Results section based on your analysis. Include your boxplot as an
APA-style Figure, with figure number and title, as demonstrated in the Results section
presentation. (Results = 12 pts; Figure = 8 pts)
Results:
An independent sample T test was conducted to determine whether the description of the
scenario that was given by an employee of a charity would encourage participants to donate
money towards ending child hunger. Group 1 was given a factual and informative scenario, and
group 2 was given an anecdotal with an “identifiable victim.” Group 1 had a M=18.75 and
SD=7.440, while Group 2 had a M=35.63 and a SD=11.160. t(14) = 3.6, p = .003 (2-tailed)
PSYC 355
significant, reject the null. Those hearing the anecdotal scenario reported that they were willing
to donate more money than those hearing the factual scenario.
Figure 1: Money given based off scenario descriptions
(CONTINUED ON NEXT PAGE)
Daily
Activities
33
22
27
16
29
Problem Set 2: The independent-samples t test
Research Scenario: A researcher wants to investigate whether residents at an assisted living
facility who attend daily activities have higher life satisfaction than those who do not. The
researcher administers the Satisfaction with Life Scale (Diener et al., 1985). Did residents
who attend daily activities (n = 10) have higher SLS scores than those who did not (n = 11)?
Using this table, enter the data into a new SPSS data file and run an independent-
samples t test to evaluate the claim that residents who attended daily activities have
higher SLS scores than those who did not. Remember to put your initials within any and
all variable names. Create a boxplot to show the difference between the groups. Follow
the directions below the table to complete the homework.
PSYC 355
30
21
36
13
10
No Daily
Activities
24
8
20
16
16
9
12
25
13
19
12
1. Paste SPSS output. (10 pts)
Group Statistics
Group_1_KS N Mean Std. Deviation
Std. Error
Mean
Group_2_K
S
Daily Activities 10 23.70 8.744 2.765
No Daily
Activities
11 15.82 5.689 1.715
Independent Samples Test
Levene's
Test for
Equality
of
Variance
s t-test for Equality of Means
F Sig
.
t df Significan
ce
Mean
Differen
ce
Std.
Error
Differen
ce
95%
Confidence
Interval of
the
Difference
PSYC 355
One
-
Side
d p
Two
-
Side
d p
Low
er
Uppe
r
Group_2_
KS
Equal
varianc
es
assum
ed
2.98
6
.10
0
2.47
2
19 .012 .023 7.882 3.188 1.20
8
14.5
55
Equal
varianc
es not
assum
ed
2.42
2
15.23
0
.014 .028 7.882 3.254 .955 14.8
08
2. Write an APA-style Results section based on your analysis. Include your boxplot as an
APA-style Figure, with figure number and title, as demonstrated in the Results section
presentation. (Results = 12 pts; Figure = 8 pts)
Results:
An independent sample t-test was conducted to determine whether residents at an assisted living
facility who attend daily activities have a higher life satisfaction than those who do not.
Group 1 was residents who attended daily activities, and group 2 did not attend daily activities.
Group 1 had a M=23.70 and SD=8.744, while Group 2 had a M=15.82 and a SD=5.689. t(19) =
2.47, p = .012 (1-tailed). Significant, reject the null. Residents who attended daily activities
reported significantly higher SLS scores than those who did not attend.
Figure 2: SLS on daily activities
