Cialdini and his colleagues (1990) argue that in general, ________ norms are more effective than ________ norms in reducing litter

The diagnosis of somatic symptom disorder is sometimes mistakenly made in cases where there are actually undetected physical illnesses, especially

a. sensory deficits. b. ulcers or colitis. c. cardiovascular diseases. d. neurological diseases.

Benzodiazepines are believed to be effective in treating generalized anxiety disorder because they mimic the effect of ______ at certain receptor sites in the brain.

A) GABA B) dopamine C) acetylcholine D) serotonin