Most of us tend to think of and identify concepts in terms of ideals or models called

Researchers have given children either psychostimulant drugs or placebo for attention-deficit/hyperactivity disorder. They are interested in how the mothers will react to their children. What do they find?

a. Parent behavior seems to be the primary cause of much of a child's hyperactivity. b. When their children are on medication, mothers are less negative and less controlling. c. Based on the response of parents, the effects of psychostimulants can be attributed to a placebo effect. d. Parents do not seem to respond any differently to children when they are on or off psychostimulant medication.

________ analysis is a statistical method for analyzing the intercorrelations among various measures or test scores. It can be used to identify clusters of correlated items that are assumed to measure the same underlying trait, ability, or aptitude

a. Psychometric b. Factor c. Behavioral d. Intelligence quotient