A stimulus that signals whether a certain response or behavior is likely to be rewarded, ignored, or punished is called a __________

Mental operations performed by children in the concrete operational stage (age 7-11) are limited to what they can

a. create themselves. b. think and reason. c. dream and fantasize. d. experience directly

According to research by D. Spiegel and colleagues, what effect does participation in group psychotherapy have on women with breast cancer?

a) lengthens life b) reduces T cell counts c) increases depression d) stigmatizes the patients