John is better friends with Michelle, who sits one seat next to him, than Janie, who sits four seats away from him, even though both Michelle and Janie were strangers when their semester began. John's attraction highlights the influence of the

Ann suffers from bulimia and has been gaining weight. Her parents are concerned and have been encouraging her to go on a diet. What would you tell her and her parents?

a. "She lacks the will power to diet successfully." b. "She has an unconscious reason to maintain weight." c. "An inherited endocrine dysfunction is most likely responsible for the difficulty she has losing weight." d. "Dieting is likely to contribute directly to subsequent binge eating."

A researcher wished to study the relationship between high school grades and college grades. Of the following research methods, which would be the most appropriate?

a) case study b) correlation c) experiment d) survey