exam3_practice_solutions.pdf

# The line plot on the right shows data from a 3x2

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9. The line plot on the right shows data from a 3x2 factorial design. Which of the following is the most likely outcome of a two-way ANOVA? a. Main effect for Factor A only b. Main effect for Factor B only c. Main effects for Factors A and B, but no interaction d. Main effects for Factors A and B, and an interaction 10. A two-factor ANOVA produces an F-ratio for factor A with df = 1, 36 and an F-ratio for factor B with df = 2, 36. Which of the following describes the experiment producing these F-ratios? 11. A two-factor study compares 2 levels of factor A and 3 levels of factor B with a sample of n = 5 participants in each treatment condition. This study will use a total of 25 participants. a. true b. false 12. A Pearson correlation of –1.00 means 13. When we plot the cell means of a two-factor factorial experiment, the lines in the figure can be parallel 14. Which of the following is (are) considered an advantage of the two-factor design a. many behaviors are influenced by more than 1 factor. b. it provides information about the interaction between two variables c. it allows for control of a factor that may influence results d. all of the above B1 B2 A1 20 30 A2 10 ?

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15. In a two-factor analysis of variance, a main effect is defined as 16. The correlation for this scatterplot is about 17. In a one-way, independent measures ANOVA, SS bettween groups = 60, df between groups = 3, SS within groups =180 and df within groups = 18. The F value for this problem is: 18. The higher the correlation between two variables, a. the more accurate will be predictions from one variable to the other b. the more dispersed the dots of the scatterplot are about the regression line c. the larger M y would be relative to M x . d. all of the above
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• Spring '12
• StephanieMilan
• Dr. Lopez, Dr. Oswald

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