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exam_3_key - Exam 3: PSC 41 Winter 2007 Please select the...

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Exam 3: PSC 41 Winter 2007 Please select the best answer for each of the following questions. Mark your answer on your scantron. You will not receive credit for marks on this test. Good luck! 1. Factorial designs are unique in that you can a. identify interactions b. test the combined effects of more than one variable c. identify moderator variables d. all of the above 2. With a 2x2 factorial design you can a. get at least as much information as you would from doing four simple experiments b. estimate the overall main effects of two variables c. determine whether the combined effect of two variables produces an effect that is different from the sum of their two individual effects d. all of the above 3. A 2x2 factorial design can test for ______ simple main effects. a. 2 b. 3 c. 4 d. 8 4. A 2x2 factorial design can test for _____ interaction(s). a. 1 b. 2 c. 3 d. 4 5. If in a 2x2 factorial design you know that there are overall main effects for both factors, which of the following is true a. there is definitely an interaction b. there is probably an interaction c. there is not an interaction d. you cannot tell anything about the possibility of an interaction 6. To estimate the overall main effect of a factor in a 2x2 factorial design, you a. add the factor’s simple main effects b. take the difference between the factor’s simple main effects c. average the factor’s simple main effects d. multiple the factor’s simple main effects 7. Which of the following statements is an example of an interaction? a. The experimental diet caused men to lose weight and women to gain weight. b. Overall, women are more likely to receive flowers than men. c. The relationship between self-esteem and body weight is different for men and women. d. both a and c are examples of interactions Page 1 of 6
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8. True of False: When you have an interaction, it makes sense to look at your main effects without considering the interaction. a. true b. false 9. You conduct a study to identify the effects of caffeine consumption and sleep deprivation on stress. You find that overall caffeine consumption causes low levels of stress and overall sleep deprivation causes low levels of stress. However, the combination of caffeine consumption and sleep deprivation causes extremely high levels of stress. In fact, it causes levels of stress that far exceed those you would expect from simply adding the effects of each together. This is an example of a. a main effect and no interaction b. one main effect and an interaction c. two main effects and an interaction d. two main effects and two interactions 10. If you were to graph the interaction between two variables you would NOT
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This note was uploaded on 04/15/2008 for the course PSC 41 taught by Professor Nitzberg during the Winter '07 term at UC Davis.

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exam_3_key - Exam 3: PSC 41 Winter 2007 Please select the...

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