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, 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 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?