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R | Data Analysis

Factorial ANOVA

Prior to the steps below, enter the data as appropriate for the analyses (described elsewhere). As always, the following commands should be typed directly in the R console window.

Obtaining Descriptive Statistics

Get the mean and standard deviation of the dependent variable for each of the levels.

Results <- aov(Outcome~FactorA*FactorB)
model.tables(Results,"means")

Obtaining Inferential Statistics

Get the analysis of variance source table and a test of statistical significance.

summary(Results)