Problem Set 1: Chi Square Test of Goodness of Fit
Research Scenario: A social psychologist is curious about people's judgments concerning the likelihood that prisoners will re-offend given certain information about the prisoners. He provides volunteers with information concerning hypothetical prisoners, then asks if they believe the prisoner is less likely, no more or less likely, or more likely to re-offend. He records these frequencies in the table below.
Using this table, enter the data into a new SPSS data file and run a Chi Square Test of Goodness of Fit to test whether the frequencies are equal across categories. Remember to weight cases as shown in the presentation. Create a bar chart to show the relationship between the variables.
Less likely to re-offend
No more or less likely to re-offend
More likely to re-offend
38
16
21
Paste SPSS output. (7 pts) What is the outcome of the SPSS output? The answer requires SPSS software to solve.
Write an APA-style Results section based on your analysis. Include your bar chart as an APA-style figure as demonstrated in the APA writing presentation. (Results = 8 pts; Graph = 5 pts) The answer requires SPSS software to solve.
Problem Set 2: Chi Square Test for Independence
Research Scenario: A school psychologist has developed two voluntary programs for students in the first two years of high school: one that focuses on peer relationships, and another that focuses on study skills. She specifically wonders whether grade level is related to the type of program attended. She tallies the number of students from each grade who attended each type of program over one year. The results are listed in the table below.
Using this table, enter the data into a new SPSS data file and run a Chi Square Test for Independence to test whether grade level is independent of the type of program attended. Remember to weight cases as shown in the presentation. Create a clustered bar chart to show the relationship between the variables.
Peer Relationship Program
Study Skills Program
Freshmen
81
134
Sophomores
90
63
Paste SPSS output. (7 pts) What is the outcome of the SPSS output? The answer requires SPSS software to solve.
Write an APA-style Results section based on your analysis. Include your clustered bar chart as an APA-style figure as demonstrated in the APA writing presentation. (Results = 8 pts; Graph = 5 pts) The answer requires SPSS software to solve.