More on ANOVA
Read this chapter and complete the questions at the end of each section. While these sections are optional, studying ANOVA may help you if you are interested in taking the Saylor Direct Credit exam for this course.
Tests Supplementing ANOVA
Questions
Question 1 out of 7.
When the null hypothesis is rejected in ANOVA, the ANOVA test reveals
which means are significantly different from which other means.
True
False
Question 2 out of 7.
A marginal mean is
A mean that is almost significant.
The mean of the means of one variable averaging over the levels of another variable.
Question 3 out of 7.
A main effect is a comparison of
Marginal means
Standardized means
Simple effects
Question 4 out of 7.
To compare a control group with the average of the other three groups, you would use
Tukey's test
An interaction test
A specific comparison
Question 5 out of 7.
To compare each mean with each other mean, you would use
Tukey's test
An interaction test
A specific comparison
ANOVA
Question 6 out of 7.
An interaction makes it difficult to interpret
simple effects
pairwise comparisons
specific comparisons
main effects
Question 7 out of 7.
If one simple effect is significant and another is not, that means there is an interaction.
True
False