var_error_delta: Estimate the error variance of Glass's Delta values

In psychmeta: Psychometric Meta-Analysis Toolkit

Estimate the error variance of Glass's \Delta values

Description

Estimates the error variance of standardized mean differences (Glass's \Delta values)

Usage

var_error_delta(delta, nc, ne = NA, use_pooled_sd = FALSE, correct_bias = TRUE)

Arguments

delta	Vector of Glass' \Delta values.
nc	Vector of control-group sample sizes (or the total sample size with the assumption that groups are of equal size, if no experimental-group sample size is supplied).
ne	Vector of experimental-group sample sizes.
use_pooled_sd	Logical vector determining whether the pooled standard deviation was used ('TRUE') or not ('FALSE', default).
correct_bias	Logical argument that determines whether to correct error-variance estimates for small-sample bias in d values ('TRUE') or not ('FALSE').

Value

A vector of sampling-error variances.

Examples

var_error_delta(delta = .3, nc = 30, ne = 30)
var_error_delta(delta = .3, nc = 60, ne = NA)

psychmeta documentation built on June 22, 2024, 6:52 p.m.