Question

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QUESTION 31

A social psychologist is interested in determining whether the presence of other children influences creativity scores on a task. The children in the study first performed a task by themselves and then performed a similar one in a group setting (with all participants in the same room, but working independently). The data are presented in the table below. Conduct the Related-Samples Sign Test using SPSS to determine whether there was a significant difference between situations. Be sure to use the method that provides more informative output (test statistic, etc.). Show your output file.

Participant	Alone	Group Setting
A	8	7
B	9	6
C	5	6
D	3	5
E	3	1
F	4	3
G	6	7
H	9	8
I	7	4
J	5	3

a.Based on your SPSS output, how many negative differences were were?

b.Based on your output, how many Positive Differences were there?

c.What was the p-value given in the SPSS for the Related Samples Sign test? (Please round your answer to 3 decimal places)

d.Assuming a .05 alpha level and a 2-tailed test, was the result of the Related-Samples Sign test significant? (i.e., should you reject the null hypothesis?) Yes or No?

Answer 1

Here the null hypothesis is that H₀: Median creativity score is not affected by presence of other children.

Alternative: H1: Median creativity score is affected by presence of other children.

  a. Number of negative differences (Group-Alone)=7

b. Number of positive differences (Group-Alone)=3

c Two tailed p valu=0.344.

d. No.

Thus evidence is not sufficient to conclude that Median creativity score is significantly affected by presence of other children.

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