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For example, we want to do a type III ANOVA, so we fit a linear model with categorical predictors and use the car::Anova function:
some_linear_model <- lm(mpg ~ as.factor(cyl)*as.factor(am), data=mtcars)
some_anova <- car::Anova(some_linear_model, type = "III")
Then, we use report() and report_table() to output the results:
report::report(some_anova)
report::report_table(some_anova)
The effect sizes using repor_tablet() are correct, but the effect sizes using report() don't match up with the correct effects:
- The main effect of (Intercept) is statistically significant and large (F(1, 26) =
171.10, p < .001; Eta2 (partial) = 0.41, 95% CI [0.15, 1.00]) - The main effect of as.factor(cyl) is statistically significant and large (F(2, 26)
= 9.12, p < .001; Eta2 (partial) = 0.20, 95% CI [0.02, 1.00]) - The main effect of as.factor(am) is statistically significant and medium (F(1, 26)
= 6.35, p = 0.018; Eta2 (partial) = 0.10, 95% CI [0.00, 1.00]) - The interaction between as.factor(cyl) and as.factor(am) is statistically not
significant and large (F(2, 26) = 1.38, p = 0.269; Eta2 (partial) = 0.41, 95% CI
[0.15, 1.00])
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