Deck 12: Two-Way Factorial Mixed Design Anova

Question 1

When do you use a factorial mixed design ANOVA?

A) When you have one categorical independent variable and one continuous dependent variable
B) When you have two or more repeated measures independent variables and one continuous dependent variable
C) When you have two or more independent variables both independent and repeated measures designs, and one continuous dependent variable
D) When you have two or more independent measures independent variables and one categorical dependent variable

Answer 1

C

Question 2

What is the interaction effect?

A) The interaction effect is an effect which occurs when one IV differs according to the number of participants.
B) The interaction effect is an effect which occurs when two dependent variables interact.
C) The interaction effect is an effect which occurs when differences in one IV depend on the different conditions in the other IV.
D) The interaction effect is an effect which occurs when differences in one IV do not depend on the different conditions in the other IV.

Answer 2

C

Question 3

What is different in testing assumptions for a mixed design factorial ANOVA compared to other factorial ANOVAs, and why?

A) In a mixed design ANOVA, we have to consider both Bonferroni and Levene's test as we have both independent measures and repeated measures independent variables.
B) In a mixed design ANOVA, we have to consider both homogeneity of variance and sphericity because we have only independent measure variables.
C) In a mixed design ANOVA, we have to consider only homogeneity of variance because we have both independent measures and repeated measures independent variables.
D) In a mixed design ANOVA, we have to consider both homogeneity of variance and sphericity because we have both independent measures and repeated measures independent variables.

Answer 3

D

Question 4

What does Mauchly's test measure and in which situations can you use it?

A) It is a test of normal distribution and it looks at the difference scores across the conditions in repeated measures design. It can be used only if we have three or more repeated measures conditions.
B) It is a test of variance and it looks at the homogeneity in the difference scores across the conditions in repeated measures design. It can be used only if we have two repeated measures conditions.
C) It is a test of sphericity and it looks at the variance in the difference scores across the conditions in repeated measures design. It can be used only if we have three or more repeated measures conditions.
D) It is a test of significance and it looks at the difference in the difference scores across the conditions in repeated measures design. It can be used only if we have three or more repeated measures conditions.

Question 5

When you run a mixed design ANOVA in SPSS you have to select Post hoc and other additional options. Which of the following selections are appropriate?

A) Post hoc button for post hocs (independent DV) EM Means for means and post hocs (repeated DV) Options for effect sizes and assumptions
B) Post hoc button for post hocs (repeated DV) EM Means for means and post hocs (repeated DV) Options for effect sizes and assumptions
C) Post hoc button for post hocs (repeated IV) EM Means for means and post hocs (independent IV) Options for effect sizes and assumptions
D) Post hoc button for post hocs (independent IV) EM Means for means and post hocs (repeated IV) Options for effect sizes and assumptions

Question 6

When you run a factorial mixed ANOVA in SPSS, what do you have to check before looking at the main ANOVA findings?

A) I do not have to check anything as the SPSS provided all the necessary answers.
B) Check assumptions of homogeneity of variance for the DV and sphericity for the repeated measures IV.
C) Check assumptions of sphericity for the independent measures IV and homogeneity of variance for the repeated measures IV.
D) Check assumptions of homogeneity of variance for the independent measures IV and sphericity for the repeated measures IV.

Question 7

If your Mauchly's test of sphericity for the repeated measures design is significant what do you have to do?

A) Apply the Greenhouse-Geisser correction.
B) Continue with the main analysis as normal as your test is significant.
C) Apply Bonferroni correction.
D) Apply post hoc test correction.

Question 8

When you apply Bonferroni correction you need to recalculate the alpha value threshold against which you will test your significance results. If you have to make nine comparisons what would the Bonferroni corrected alpha level be?

A) .06
B) .006
C) .050
D) .012

Question 9

What do we have to do when we have a one-tailed hypothesis and find a significant main effect where the IV has three conditions?

A) Look at descriptive statistics and planned contrasts.
B) Look at descriptive statistics and post hoc contrasts.
C) Look at descriptive statistics only.
D) Look at both post hocs and planned contrasts.

Question 10

Which of the following is not an appropriate way to break down a significant interaction?

A) Using SPSS syntax to run comparisons
B) Using one-way ANOVAs
C) Using t tests with Bonferroni corrected alphas
D) Using Mauchly's test

Question 11

In the worksheet analysis, which analyses should be used to test which assumptions?

A) Levene's test of homogeneity of variance on both IVs.
B) Mauchly's test for the assumption of sphericity on both IVs.
C) Mauchly's test for the assumption of sphericity on the repeated measures IV, and Levene's test of homogeneity of variance on the independent measures IV.
D) Mauchly's test for the assumption of sphericity on the independent measures IV, and Levene's test of homogeneity of variance on the repeated measures IV.

Question 12

In the worksheet analysis, how many tests of homogeneity of variance are there, and why?

A) Four, because there are four conditions in the repeated measures IV.
B) One, because there is one independent measures IV.
C) One, because there is one repeated measures IV.
D) Two, because there are two IVs in the analysis.

Question 13

In the worksheet analysis, from which row should you read the ANOVA statistics for the main effect of "time"?

A) Sphericity assumed
B) Greenhouse-Geisser
C) Huynh-Feldt
D) Lower-bound

Question 14

In the worksheet analysis, what are the correct degrees of freedom to report for the interaction?

A) 3, 114
B) 2.273, 114
C) 2.273
D) 2.273, 86.370

Question 15

In the worksheet analysis, what is the correct level of significance for the "living with a relative" main effect?

A) .105
B) < .001
C) .000
D) .068