credibility: Construct a credibility interval

In jadahlke/psychmeta: Psychometric Meta-Analysis Toolkit

Construct a credibility interval

Description

Function to construct a credibility interval around a mean effect size.

Usage

credibility(mean, sd, k = NULL, cred_level = 0.8, cred_method = c("t", "norm"))

Arguments

mean	Mean effect size.
sd	Residual/true standard deviation of effect sizes, after accounting for variance from artifacts.
k	Number of studies in the meta-analysis.
cred_level	Credibility level that defines the width of the credibility interval (default = .80).
cred_method	Distribution to be used to compute the width of credibility intervals. Available options are "t" for t distribution or "norm" for normal distribution.

Details

CR=mean_{es}\pm quantile\times SD_{es}

Value

A matrix of credibility intervals of the specified width.

Examples

credibility(mean = .3, sd = .15, cred_level = .8, cred_method = "norm")
credibility(mean = .3, sd = .15, cred_level = .8, k = 10)
credibility(mean = c(.3, .5), sd = c(.15, .2), cred_level = .8, k = 10)

jadahlke/psychmeta documentation built on Feb. 11, 2024, 9:15 p.m.