Recent research on the dependence produced by nicotine has focused on genetic differences related to:

Cognitive-behavioral therapists would argue that anxiety and mood disorders are largely the result of

A) conditional positive regard. B) maladaptive cognitions. C) maladaptive behaviors. D) unresolved childhood issues.

Cross-cultural observations suggest that infants are likely to be held or carried almost constantly as a result of

a. women marrying at younger ages. b. living in extended family groups. c. men helping with childcare. d. a belief they are very vulnerable.