Pedophilia is always incestual.

A person who sees life in "right or wrong," "all or none" terms is engaging in:

A) hopelessness. B) dichotomous thinking. C) psychache. D) blaming.

One research study found that a recovered heroin abuser experienced nausea and withdrawal symptoms when he returned to the neighborhood where he had previously used heroin and experienced withdrawal effects. This research supports the idea that _____ may be a significant factor in the development and maintenance of substance addiction.

A. operant conditioning B. participant modeling C. classical conditioning D. reward pathways