One Way ANOVA (Quiz)

What is the main purpose of using one-way between groups ANOVA?

• To measure the frequency of categories

• To compare the means of one group

• To compare the means of two or more groups

• To analyze the relationship between two continuous variables

In a one-way ANOVA, what is the independent variable often referred to as?

• Factor

• Covariate

• Response variable

• Dependent Variable

What does the F-ratio in a one-way ANOVA test?

• The variance within the groups

• The variance between the groups

• The mean of the dependent variable

• The ratio of between-group variance to within-group variance

In One Way ANOVA, it has four assumptions must be met, one of them is

• The samples must be dependent.

• The dependent variable must be nominal.

• The independent variable must have only two levels.

• The variances between groups must be equal.

If the p-value in a one-way ANOVA is less than 0.05, what can you conclude?

• The variances are not equal.

• The sample size is too small.

• There is a significant difference between the group means.

• There is no significant difference between the group means.

Which of the following is a null hypothesis for a one-way ANOVA?

• • The group means are all equal

• The group means are not all equal

• At least one group mean is different

• The dependent variable is normally distributed

What is the dependent variable in a one-way ANOVA?

• The variable being measured

• The variable being manipulated

• The variable with the least variance

• The variable used to group participants

Which post hoc test is commonly used after a one-way ANOVA to find which specific group means are different?

• Chi-square test

• T-test

• Tukey's HSD test

• Pearson correlation

In the context of one-way ANOVA, what does "homogeneity of variances" mean?

• The groups have the same mean

• The groups are normally distributed

• All groups have the same sample size

• The variances within each group are equal

What is the alternative hypothesis in a one-way ANOVA?

• The group variances are all equal

• The group means are all equal

• The group variances are not equal

• The group means are not all equal