1. For a between-subjects study with one independent variable and three levels, why would it be inappropriate to conduct three independent-samples t-tests (each comparing two sample means) to analyze the data? a. With multiple tests, there is greater risk of making a Type I error. b. With multiple tests, there is greater risk of making a Type II error. c. Compared to ANOVAs, ttests are less sensitive to differences between means. d. Unlike ANOVAs, t-tests reveal whether there is an effect but not the direction of the effect. 2. In a two-factor ANOVA, the main effect of a factor is the: a. extent to which the factor's effect depends on the levels of the other factor. b. effect of the factor on the DV soores, ignoring the levels of the other factor c. extent to which the factor produces scores that are different from those produced by the other factor. d. effect of the factor on the DV soores, when considering only a single level of the other factor. 3. When we say that there is an \"interaction\" between factors A and B, we mean: a. that A and B are correlated. b. that A affects B. c. that the effect of A on the DV depends on the level of B. d. all of the above. 4. Which of the following isfare a mediation hypothesis? i. Bilingualism is associated with stronger multitasking abilities, but more so in older adults than in younger adults. ii. Bilingualism is associated with stronger multitasking abilities because the lifelong experience of managing attention to two languages reorganizes neural networks. iii. Bilingualism is associated with stronger multitasking abilities, and this link is especially strong in people who learned their two languages early in life. a. | only D. II only C. II and I" d l,ll,and Ill 5. Dr. Goodtest wants to make sure that his exams actually and only measure the students' knowledge of psychology. He is concerned with validity. a. Ecological b. External c. Content d. Internal 6. One benefit of within-subjects designs over between-subjects designs is that they a. minimize practioe effects. b. require less time investment per participant. c. require fewer participants. d. minimize attrition effects