what does it mean to have a main effect
Main Effects & Interactions page 2. Because a main effect is the effect of one independent variable on the dependent variable, ignoring the effects of other independent variables, you will have a total of two potential main. effects in this study: one for age of student and one for teacher expectations. In general, there. is one main effect for every independent variable in a study.
The noun MAIN has 2 senses: 1. any very large body of (salt) water. 2. a principal pipe in a system that distributes water or gas or electricity or that collects sewage. Familiarity information: MAIN used as a noun is rare.