In any given year, the prevalence rate for bipolar disorder in the United States is _____

In a research study one group of rats heard a tone (CS) that was always followed by a shock (UCS). The second group heard the tone before or after the shock was presented. What are these groups of rats referred to by researchers?

a) contingent group; noncontingent group b) noncontingent group; contingent group c) conditioned group; unconditioned group d) unconditioned group; conditioned group

The crisis characterizing the fourth stage of development is

A) initiative versus guilt. B) autonomy versus shame and guilt. C) identity versus role confusion. D) industry versus inferiority.