ANOVA MULTIPLE CHOICE QUESTIONS

B

1) Levene's test tests whether: a) Data are normally distributed. b) The variances in different groups are equal. c) The assumption of sphericity has been met. d) Group means differ.

C

7) What type of data are best analysed in ANOVA? a) Correlational b) Random c) Experimental d) Simple

B

ANOVAs cannot be used when testing data collected in educational research as it cannot be applied to social science. a) True b) False

A

Analysis of variance (ANOVA) performs which type of test? a) F-test b) t-test c) z-test d) xy-test

B

Any difference in population means in analysis of variance will inflate the error sum of squares. a) True b) False

A

Does an ANOVA test identify specifically where the differences exist between the groups? a) No b) Yes c) Yes, provided the data are normally distributed d) Yes, provided the data are not normally distributed

A

What is the definition of 'mean square'? a) A sum of squares divided by its degrees of freedom b) The square root of the mean c) The square of the mean d) A table of means with four cells

A

What is the purpose of a post hoc test? a) It identifies where differences between the study groups exist. b) It identifies the overall appropriateness of the ANOVA model. c) It identifies differences between and within study groups. d) It identifies where differences within the study group exist.

B

When sample size is large, which of the following assumptions can be ignored? a) That each sample will have an equal variance b) That samples have been drawn from a normal population c) Both d) Neither

B

In a simple analysis of variance problem, which of the following is an estimate of the variance of individual measurements (after the various effects have been accounted for)? a) MS(between) b) MS(within) c) MS(total) d) None of the above