Podcast
Questions and Answers
What is a major limitation of using t-tests for comparing means of more than two groups?
What is a major limitation of using t-tests for comparing means of more than two groups?
- It is only used for comparing two groups
- It is only suitable for experimentally treated organisms
- It is time-consuming and increases the risk of type 1 errors (correct)
- It is not applicable to normally distributed data
What is the purpose of one-way ANOVA?
What is the purpose of one-way ANOVA?
- To test whether the means of two or more sets of related measurements are different from each other
- To test whether the means of two or more sets of unrelated measurements are different from each other (correct)
- To test whether the data within each group is normally distributed
- To test whether the variances of the groups are equal
Which of the following assumptions is necessary for the validity of two-way ANOVA?
Which of the following assumptions is necessary for the validity of two-way ANOVA?
- Equality of variances between groups
- Normality of data within each group (correct)
- Independence of observations
- All of the above
What is an assumption of one-way ANOVA?
What is an assumption of one-way ANOVA?
How many null hypotheses are tested in a two-way ANOVA?
How many null hypotheses are tested in a two-way ANOVA?
What does the F statistic represent in ANOVA?
What does the F statistic represent in ANOVA?
What is the main difference between one-way ANOVA and two-way ANOVA?
What is the main difference between one-way ANOVA and two-way ANOVA?
In a two-way ANOVA, what does the interaction term represent?
In a two-way ANOVA, what does the interaction term represent?
Which of the following is a type of ANOVA?
Which of the following is a type of ANOVA?
What is the purpose of a two-way ANOVA?
What is the purpose of a two-way ANOVA?
What is the main advantage of using ANOVA instead of multiple t-tests?
What is the main advantage of using ANOVA instead of multiple t-tests?
When should you reject the null hypothesis in a two-way ANOVA?
When should you reject the null hypothesis in a two-way ANOVA?
What is the main problem with the basic ANOVA test?
What is the main problem with the basic ANOVA test?
What is the purpose of a repeated measures ANOVA?
What is the purpose of a repeated measures ANOVA?
What is one of the assumptions of a repeated measures ANOVA?
What is one of the assumptions of a repeated measures ANOVA?
What type of ANOVA is used to test whether one group of experimentally treated organisms are different at several times before and after a treatment?
What type of ANOVA is used to test whether one group of experimentally treated organisms are different at several times before and after a treatment?
What is the main difference between a one-way ANOVA and a repeated measures ANOVA?
What is the main difference between a one-way ANOVA and a repeated measures ANOVA?
What is the purpose of using a Dunnett's test in conjunction with a one-way ANOVA?
What is the purpose of using a Dunnett's test in conjunction with a one-way ANOVA?
