The strongest predictor of depression in both male and female adolescents is low self-esteem

Lyle is 23 years old. His mother died two weeks ago, and since then he has been so upset that he has unable to eat or sleep. He has been crying a great deal. The death was completely unexpected, and Lyle has been alternating between feeling sad, to feeling very anxious, and to wanting to deny that his mother is dead. Lyle appears to be experiencing

a. rapid cycling bipolar disorder. b. a major depressive episode. c. double depression. d. grief.

A measure of intelligence based on head size is likely to have a ________ level of reliability and a ________ level of validity.

a. low; low b. low; high c. high; low d. high; high