____ are a group of psychoactive drugs that produce sensations of things that are not actually present.

The research on abused women shows that

a. they typically make adjustments in order to successfully avoid future abuse. b. they typically experience physical injuries, but psychological problems are rare. c. they typically maintain high self-esteem, despite the problems with the relationship. d. the abuser may prevent a woman from seeking medical help for her injuries.

Which qualitative research method did Jean Piaget rely on in the development of his theory of cognition?

a. participant observation b. direct observation c. unstructured interview d. case study