EXERCISE 8.2: DETECTING VALID PREDICTORS OBJECTIVE: To gain experience identifying valid predictors in a data set.

PROLOGUE: The data set “Bus Driver.sav” (see Appendix B) contains a number of variables that assess job performance. Because several independent measures are also included in this data set, we might be tempted to identify variables that might be useful for predicting the performance of future bus drivers. Following in Table 8.1 are descriptions of several potential predictors and measures of bus driver job performance.
Use the data set “Bus Driver.sav” to correlate the possible predictors with the job performance measures and then answer the following questions. ( Note: For this exercise, examine the predictors individually using correlation. An opportunity to examine combinations of these predictors using multiple regression is provided in Exercise 17.1.)