In ANOVA,you have a main effect when ______.

A) a factor significantly affects the outcome variable.
B) an outcome significantly affects a factor.
C) there is an interaction between factors.
D) there is an interaction between outcomes.

Main Effect

In analysis of variance, when a factor or an independent variable has a significant effect upon the outcome variable.

ANOVA

Short for Analysis of Variance, a set of statistical techniques used to compare the means of three or more samples.

Factor

An element that contributes to a particular result or situation, often used as a variable in experiments and statistical analysis.