We asked the authors of this paper if we could have the SPSS data file so that we could use it as an exercise in this book, and they agreed. For the purposes of this exercise, we are going to ask you to carry out a Mann–Whitney test on their GHQ-12 data (see Table 7.13). Look at the data shown in Screenshot 7.14. The dependent variable is the score on GHQ-12 and the groups are control (coded 0) and exercise

(coded 1). Carry out the Mann–Whitney test, obtaining the output and check your results against those of Blake and Batson. The correct output is shown in the Answers section at the end of the book.