In a two-way ANOVA, the main effect of a factor is the
a. extent to which its effect depends on the action of the other factor.
b. extent to which that factor produces dependent variable scores different from those the other factor produced.
c. effect of changing the levels of that factor on the dependent variable scores, ignoring all other factors in the study.
d. effect of changing the levels of that factor on the dependent variable scores, taking into account all other factors in the study.
Question 2
Which of the following is not one of the assumptions we must satisfy when conducting a two-way, between-subjects ANOVA?
a. Each cell is an independent sample.
b. The populations represented are normally distributed interval or ratio scores.
c. The variances of all the represented populations are homogeneous.
d. The means of all the populations represented are equal.
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