__________ is the process by which experience results in a relatively permanent change in future behavior

A clinician who notes the role of patient's sex, income level, and race in his or her problems is illustrating the influence of

a. class differences b. sociocultural models c. symptom expression d. feminist psychology

If schizophrenia depended solely on genetic make-up, then compared to rates of schizophrenia in siblings in general, "fraternal" twins should have:

A) four times the concordance rate for schizophrenia. B) twice the concordance rate for schizophrenia. C) the same concordance rate for schizophrenia. D) half the concordance rate for schizophrenia.