The average human cell (with exception to ova and sperm cells) contains how many chromosomes?

When does the rate of depressed mood peek?

a. age 10-12 b. age 12-14 c. age 15-17 d. age 18-19

When a test contains items that seem odd or unrelated to the construct being measured, it is likely that it has been constructed using the

a. analytic approach. b. empirical approach. c. psychometric approach. d. random question approach.