Calculates effect-size measures for Analysis of Variance output objects. This function is not exported and will soon be deprecated.
add_effect_sizes(x, es = "ges", observed = NULL, mse = TRUE, intercept = FALSE)
An object of class apa_variance_table
.
Character. A vector naming all to-be-computed effect-size measures.
Currently, partial eta-squared ("pes"
), generalized eta-squared
("ges"
), and eta-squared ("es"
) are supported.
Character. A vector naming all factors that are observed (i.e., not manipulated).
Logical. Should means-squared errors be computed?
Logical. Should the sum of squares of the intercept (i.e., the deviation of the grand mean from 0) be included in the calculation of eta-squared?