Psychology 2820E Lecture Notes - Lecture 13: Analysis Of Variance, Railways Act 1921

• School: Western University
• Department: Psychology
• Course: Psychology 2820E
• Professor: Riley Hinson

Document Summary

In the simplest case of a factorial design, there are two factors and two levels of each factor: this would be shown as a 2x2. In a 2x3 factorial design there are two factors, with 2 levels of the first factor and. 3 levels of the second factor: the groups of the factorial design result from combining all levels of one factor with all levels of the other factor. In a 2x2 factorial design there would be a total of 4 groups. A graph may show factor a on the x axis with the levels indicated as a1 and a2. In a 2x2 factorial there are 8 possible outcomes: potential main effect of a. Potential interaction: potential main effect of a. No interaction: potential main effect of a. Potential interaction: no potential main effect of a. No interaction: no potential main effect of a.