Dean finds it impossible to reach orgasm unless he is holding and kissing a woman's shoe. This problem is a paraphilia known as

I selected my 7th grade classmates as the control group and a group of 7th graders from another school as the treatment group. What bias has a good chance of impacting this study?

a. bias due to history b. the posttest-only control-group design c. bias due to maturation d. biased selection

A job analysis is typically conducted by:

a. job incumbents b. supervisors c. outside consultants d. the human resource department