Deck 7: One-Way Independent Measures Anova

Question 1

When do you use an analysis of variance (ANOVA)?

A) When you assess a correlation between two variables
B) When you compare means from two conditions
C) When you compare means from more than two conditions
D) When you assess the equality of variances

Answer 1

C

Question 2

Which of the following statements best describes the calculation of an F ratio?

A) An ANOVA works by dividing the random variance by the experimental variance.
B) An ANOVA works by adding the experimental variance to the random variance.
C) An ANOVA works by dividing the means by the random variance.
D) An F ratio is calculated by dividing the experimental variance by random variance.

Answer 2

D

Question 3

What statistic is calculated in an ANOVA?

A) Pearson's r
B) F ratio
C) Z-score
D) T-score

Answer 3

B

Question 4

How do you test the assumption of homogeneity of variance?

A) By creating a histogram
B) By running Levene's test
C) By running Bonferroni post hoc test
D) By running Mann-Whitney test

Question 5

What does the main effect tell us?

A) Whether data is normally distributed
B) Whether there is a correlation between variables
C) Whether there is a difference across all the conditions
D) Where the significant differences between conditions lie

Question 6

Which of the following tests do you need to conduct to determine which groups are different, if you find a statistically significant ANOVA?

A) Levene's test
B) Kolmogorov-Smirnov test
C) Both planned or post hoc contrasts
D) Either planned or post hoc contrasts

Question 7

Which of the following statements is not correct?

A) The Bonferroni post hoc test can be used when the assumption of homogeneity has been met.
B) Planned contrasts tend to be more conservative than post hoc contrasts.
C) Planned or post hoc contrasts automatically adjust p values to avoid a Type I error.
D) The Games-Howell post hoc test can be used when the assumption of homogeneity has been violated.

Question 8

Which statistics do you need to include when reporting an ANOVA in APA format?

A) F statistic, the between-groups, and the within-groups degrees of freedom and the p value
B) F statistic, p value, and sample size
C) Means, standard deviations, F statistic, and p Value
D) Means, standard deviations, F statistic, p value, and sample size

Question 9

Which of the following tests can you use if one of the parametric assumptions of the one-way independent ANOVA has been violated?

A) Kruskal-Wallis test
B) Mann-Whitney test
C) Games-Howell post hoc test
D) Levene's test

Question 10

Which steps do you need to take to run one-way independent measures ANOVA in SPSS?

A) Analyze > General Linear Model > Multivariate……
B) Analyze > Compare Means > Univariate…
C) Analyze > General Linear Model > Univariate…
D) Analyze > Compare Means> Independent-Sample T Test

Question 11

In the worksheet exercise, which IV condition has the highest mean value?

A) Low frequency
B) Frequently
C) Sometimes
D) Never

Question 12

In the worksheet exercise, what is the p value for Levene's test, and has the assumption been met or not?

A) p = .012, the assumption has not been met.
B) p = .012, the assumption has been met.
C) p = .069, the assumption has not been met.
D) p = .069, the assumption has been met.

Question 13

In the worksheet exercise, what are the correct degrees of freedom to report for the ANOVA?

A) 1, 96
B) 3, 96
C) 1, 100
D) 3, 100

Question 14

In the worksheet exercise, how has the F ratio been calculated??

A) 95.189/24.721
B) 95.189+24.721
C) 24.721/95.189
D) 95.189*24.721

Question 15

In the worksheet exercise, how would you interpret the effect size for the ANOVA?

A) A significant effect size
B) A large effect size
C) A small effect size
D) A medium effect size