Puzzle completion time example data from Hays (1994).
A data frame with 48 observations on 3 variables.
Puzzle completion time, in minutes
the subject identifier
shape of the puzzle (round or square)
color content of the puzzle (monochromatic or color)
Hays (1994; section 13.21, table 13.21.2, p. 570) describes a experiment wherein 12 participants complete four puzzles each. Puzzles could be either square or round, and either monochromatic or in color. Each participant completed every combination of the two factors.
Hays, W. L. (1994), Statistics (5th edition), Harcourt Brace, Fort Worth, Texas
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data(puzzles) ## classical ANOVA ## Both color and shape are significant, interaction is not classical <- aov(RT ~ shape*color + Error(ID/(shape*color)), data=puzzles) summary(classical) ## Bayes Factor ## Best model is main effects model, no interaction anovaBF(RT ~ shape*color + ID, data = puzzles, whichRandom = "ID", progress=FALSE)
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