john has been classified as high in introversion. Eysenck would predict that: a. he would prefer a quiet environment, because he would tend to react to new stimuli less intensely than an extravert would. b. his nervous system is not as easily aroused as is an extravert's nervous system. c. he would seek out and thrive in a highly stimulating environment. d. he would seek out and thrive in an environment that offered a relatively low level of stimulation.

Paula maintained her normal weight during her freshman year in college. during her sophomore year, she moved into an apartment with two friends who are overweight. the three regularly enjoy high-calorie meals together, and paula has gained more than twenty pounds. she wants to lose weight, but it seems as if, whenever she plans to prepare a healthful, low-calorie meal, her roommates come home with a box of pizza or take-out burgers and fries. what type of influence are her friends having on her behavior? social undermining moral support emotional encouragement informal persuasion social undermining