The four stages of Masters and Johnson's sexual response cycle, in order of occurrence, are _____, _____, _____, and _____

Tony has been in a nursing home for one year. He has become apathetic, indifferent, and does not care about himself. What term describes Tony?

a) learned helplessness b) self-pity c) institutionalism d) neurodementia

Researchers conducting web-based research have trouble controlling who actually answers their on-line questionnaires, which places limits on their research due to the possibility of

a. researcher bias. b. research participant bias. c. biased samples. d. the Barnum effect.