PSYB01H3 Chapter Notes - Chapter 7: Statistical Hypothesis Testing, Analysis Of Variance, Null Hypothesis
Document Summary
Provide direct tests of the main effects of each independent variable and the interaction effects between the independent variables. The variables have two or more levels and can be within- or between- subjects. Two independent variables can be added to a study as long as they are qualitatively different. A multifactorial experiment is a more economical and efficient design to evaluate and test separate/joint influences of one or more independent variables. Simplest multifactorial design has two independent variables, each with two levels/values. 2x2 factorial design two independent variables, with each having two levels. 3x4 factorial design two independent variables, one with three levels and one with four. Axa the amount of a tells you how many independent variables. A1xa2 a1 tells you how many levels the first iv has while a2 tells you how many levels the second iv has.
