Percentage of firms reporting use
87%
50
31
78
26
7
96
11
94
17
5
15
Copyright © 1999 by Harcourt Brace & Company All rights reserved.
甄選效度 AVERAGE VALIDITIES OF
ALTERNATIVE PREDICTORS OF JOB PERFORMANCE
No Relationship Positive Relationship** As the value of one variable increases, so does the other.
Example: *The higher one’s satisfaction, the lower his or her intention to quit. **The higher one’s satisfaction, the higher his or her intention to remain with the company.
13
(y) Criterion
Examples of Scatterplots and the Resulting
Correlation Coefficient
r = +1.0
r = -1.0
(y) Criterion
Predictor (test) (x)
Predictor (test) (x)
11
The Selection Process
• Obtaining Reliable and Valid Information
