PSYC 3010 Exam Questions and Correct Answers

A researcher examined the release of endorphins in the brain as a function of chocolate consumption (X1), genuine compliments (X2), and the interaction between these two continuous variables (X1X2). She expects that the beneficial effect of chocolate will be evident for those individuals who are provided with a high level of genuine compliments (i.e., 1 standard deviation above the mean on genuine compliments), but will be attenuated when the level of genuine compliments offered to the individual is low (i.e., 1 standard deviation below the mean on genuine compliments). She conducted a moderated multiple regression and discovered a significant interaction. Which of the following outcomes for the simple slopes analysis would provide support for her predictions? a) At low genuine compliments: β = .06, p = .345; and at high genuine compliments: β = .02, p = .627. b. At low genuine compliments: β = .06, p = .345; and at b. At low genuine compliments: β = .06, p = .345; and at high genuine compliments: β = .46, p = .002. A researcher conducts a study and finds a direct effect of state anxiety on one's ability to successfully navigate their way out of bunkers (i.e., sand traps) in novice golfers, no direct effect of practice, but a significant Anxiety x Practice interaction is present. Follow-up simple slopes revealed the following coefficients when ability to navigate bunkers was regressed on practice: for low anxiety (1 SD below the mean) β = .55, p .001; and for high anxiety (1 SD above the mean) β = -.10, p = .072. Which of the following statements is NOT true regarding these results? a.The association between practice and ability to successfully navigate bunkers was stronger for novice golfers with low anxiety than high anxiety. b.There was a significant positive association between practice and ability to successfully navigate bunkers for novice golfers with low anxiety. c.There was a significant negative association between b. At low genuine compliments: β = .06, p = .345; and at high genuine compliments: β = .46, p = .002. An experimenter decides to explore the influence of a new drug on memory loss in the elderly. While he expects that overall, memory will still fade over time, he expects that increased doses of his new neurological enhancing drug will lessen this effect. He conducts a lab study investigating dosage of the neurological drug (X1), time (X2), and the Drug x Time interaction (X1X2) on memory recall in healthy elderly patients. Which of the following results would best support his hypothesis? a.