Question

In a two-way analysis of variance, a main effect is defined as: Select one: a. the mean differences among the levels of one factor b. the mean differences among all treatment conditions c. the mean differences between the two factors d. the differences between the largest mean and the smallest means

Answer 1

a. the mean differences among the levels of one factor

Explanation:

In statistics, a two-way analysis of variance (ANOVA), a main effect is defined as the mean differences among the levels of one factor.

The aim of a two-way analysis of variance (ANOVA) is to give the relationship or identify if there is an interaction between the two independent variables on the dependent variable.