SPSS M4 Assignment
INSTRUCTION:
- Use this Word document to type out all the answers. Each answer should be supported by pasting the relevant SPSS output table(s) in this document, or type out calculation process if manual calculation was needed.
- Download the Excel data file in Canvas for this assignment and import the data into SPSS.
SPSS data set file
Q1. Perform and Interpret a Two-Way ANOVA (25 points total)
Use the Q1 worksheet in the data file for the following questions. This worksheet contains data from a salary survey. We would like to know if gender and education level have a significant effect on salary. The worksheet “Codebook” contains descriptions and values for the variables
- Import the Q1 data set into SPSS. Be sure to specify the scale of measurement (“Measure” column) for each variable and specify the “Values” for the two IVs in “Variable View.” Submit the SPSS data file to earn the points. (2 points: deduct .5 for each error up to 2 total)
- Run a 2x5 two-way ANOVA on the data set. Report the omnibus test result:
- Report the omnibus F test result in APA format including F, p, and partial h^{2}. Be sure to paste the relevant output table here to support your answer. (2 points)
- Draw a conclusion from the hypothesis testing result and state the finding as supported by the result (1 points)
- Report the result of the test on the Gender x Ed interaction effect:
- Report the test result on the interaction effect in APA format including F, p, and partial h^{2 }(2 points)
- Draw a conclusion from the hypothesis testing result and state the finding supported by the result (1 point)
- If follow-up tests are necessary, perform those tests and report the result in APA format. And then explain the finding from the follow-up tests. If no follow-up tests are necessary, go to question 4 below. (2 points)
- If follow-up tests are not necessary, explain why they are not necessary. Then create a mean plot with Ed as the horizontal axis and gender as the grouping factor, and paste it here. (2 points)
- Report the hypothesis test result of the main effect of Ed.
- Report the test result on the main effect in APA format including F, p, and partial h^{2 }(2 points)
- Draw a conclusion from the hypothesis testing result and state the finding supported by the result (1 point)
- If post hoc tests are necessary, perform those tests and report the result in APA format. And then explain the finding from the follow-up tests. If post hoc tests are not necessary, go to question 4 below. (2 points)
- If post hoc tests are not necessary, explain why they are not necessary. Then create a bar graph to show the comparison being made within the main effect. (1 point)
- Report the hypothesis test result of the main effect of Gender.
- Report the test result on the main effect in APA format including F, p, and partial h^{2 }(2 points)
- Draw a conclusion from the hypothesis testing result and state the finding supported by the result (1 points)
- If post hoc tests are necessary, perform those tests and report the result in APA format. And then explain the finding from the follow-up tests. If post hoc tests are not necessary, go to question 4 below. (2 points)
- If post hoc tests are not necessary, explain why they are not necessary. Then create a bar graph to show the mean comparison within the main effect. (2 points)
Q2. Perform and Interpret a Two-Way ANOVA (20 points total)
Use the Q2 worksheet in the data file for the following questions. This worksheet contains data from a study comparing four different antidepressants. We would like to know if the reduction in depression symptom score differs among the different drugs and whether it matters if the patient is having her/his first depression episode or a repeated one. The worksheet “Codebook” contains descriptions and values of the variables.
Note that the depression ChangeScore is treated as a continuous variable in this analysis.
A. Import the Q2 data set into SPSS. Be sure to specify the scale of measurement (“Measure” column) for each variable and specify the “Values” for the two IVs in “Variable View.” Submit the SPSS data file to earn the points. (2 points: deduct .5 for each error up to 2 total)
B. Run a 4x2 two-way ANOVA on the data set. Report the omnibus test result:
- Report the omnibus F test result in APA format including F, p, and partial h^{2 }(1 point)
- Draw a conclusion from the hypothesis testing result and state the finding as supported by the result (1 point)
C. Report the result of the test on the drug x episode interaction effect:
- Report the test result on the interaction effect in APA format including F, p, and partial h^{2 }(2 points)
- Draw a conclusion from the hypothesis testing result and state the finding supported by the result (1 point)
- If follow-up tests are necessary, perform those tests and report the result in APA format. And then explain the finding from the follow-up tests. If no follow-up tests are necessary, go to the next question below. (1 point)
- If follow-up tests are not necessary, explain why they are not necessary. Then create a mean plot with Drug as the horizontal axis and Episode as the grouping factor, and paste it here. (2 points)
D. Report the hypothesis test result of the main effect of Drug.
- Report the test result on the main effect in APA format including F, p, and partial h^{2 }(1 point)
- Draw a conclusion from the hypothesis testing result and state the finding supported by the result (2 points)
- If post hoc tests are necessary, perform those tests and report the result in APA format. And then explain the finding from the follow-up tests. If post hoc tests are not necessary, go to the next question below. (1 point)
- If post hoc tests are not necessary, explain why they are not necessary. Then create a bar graph to show the mean comparison within the factor examined here. (1 point)
E. Report the hypothesis test result of the main effect of Episode.
- Report the test result on the main effect in APA format including F, p, and partial h^{2 }(1 point)
- Draw a conclusion from the hypothesis testing result and state the finding supported by the result (2 points)
- If post hoc tests are necessary, perform those tests and report the result in APA format. And then explain the finding from the follow-up tests. If post hoc tests are not necessary, go to the next question below. (1 point)
- If post hoc tests are not necessary, explain why they are not necessary. Then create a bar graph to show the mean comparison within the factor examined here. (1 points)