Question: Continue to use the 4 steps as above:

An industrial/organizational psychologist develops a test to predict job performance. He gives the test to 20 applicants and then hires all 20. One year later he obtains the performance ratings of the 20 employees. The application test scores and job performance ratings are given below. In SPSS choose analyze-regression-linear and use regression method.

a. What is the correlation between the test and job performance?

b. What is the best linear regression equation for predicting job performance from the test?

c. Plot the scatter diagram and draw the linear regression line (Use graphs-Legacy- scatter/dot. Draw regression line on this graph by hand.

d. If a future job applicant scores 60 on the test, what job performance score would be predicted for this person using the linear regression equation?

e. If a job performance score of 70 is considered successful performance, should the applicant who scored 60 be hire?

f. What cutoff score on the test should be used for hiring applicants?

Individual test job performance

1 80 90

2 60 70

3 70 70

4 50 62

5 90 90

6 85 80

7 70 85

8 80 95

9 70 85

10 75 70

11 65 75

12 45 55

13 53 66

14 73 85

15 81 89

16 92 89

17 78 85

18 86 97

19 83 94

20 44 58