Use the data set in the Problem Set Data document. The data is in Excel format. The first tab of the spreadsheet lists the data, and the second tab is a key to the labeling of the data. (Note: This is the same data set used for the exercises in Modules Six and Seven.)
- Use both number of previous math courses taken and phobia rating to predict scores on the stats quiz (method = enter in SPSS). Are both predictors contributing significantly to the regression model? How do you know?
- SPSS output:
Results write-up in APA format, including the interpretation of test results:
(see this link: http://my.ilstu.edu/~jhkahn/apastats.html)
- Repeat the first exercise, adding mathquiz as a third predictor and provide the SPSS output. Is prevmath still a useful predictor? Explain. Write up the results in APA format, including the interpretation of test results.
a. SPSS output:
Interpretation of adding math quiz scores to the regression model