Many infant test scores are labeled __________ quotients

Each day, while Sid is sitting at his desk at work, he continually thinks about germs. Each time this occurs, he washes his hands. Sid probably suffers from

a. agoraphobia. b. panic disorder. c. generalized anxiety disorder. d. obsessive-compulsive disorder. e. bipolar disorder.

When adolescents enter middle school, which of the following does NOT decline?

A) Effectiveness of supervision by teachers B) Students' academic achievement C) The number of students in the classroom D) Students' self-perceptions of academic ability