Factorial Analysis of Variance

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Presentation transcript:

Factorial Analysis of Variance Dr. Kalman J. Andrassy

Definition Statistical test used to compare two or more independent variables Drug Testing: Comparing the effect of a drug between Caucasians, African-Americans, and Hispanic people while also considering age.

SPSS Factorial ANOVA

Univariate Window Your dependent variable must be transferred over to the Dependent variable box. Your independent variables can go into Fixed Factors. You have options to introduce random factors, covariates, and weight variables.

Options Window Many options are available to display, but I suggest descriptive statistics and homogeneity tests. The means should be displayed for all three independent variables.

Output F = 7.406; df = 2, 60; p<0.05 F(2,60) = 7.406; p=0.001

Citations Images downloaded June 11, 2017 from https://statistics.laerd.com/spss-tutorials/three-way-anova-using-spss- statistics.php

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