sd2extrapRel: Extrapolate standard deviation to reliability

In mathesong/relfeas: Reliability for Feasibility Analysis

Description

Calculate the extrapolated reliability for a given standard deviation value

Usage

sd2extrapRel(sd, icc_original, sd_original = 1, tau = 1)

Arguments

sd	Standard deviation in the new sample for which the reliability is being extrapolated.
icc_original	ICC from the original study.
sd_original	Standard deviation from the original study. Optional: default is 1. For 1, the sd argument is the proportional increase in SD.
tau	SEM inflation factor. Optional: default is 1. For 1, the SEM is assumed to be constant between studies.

Value

The extrapolated ICC ICC value for the new sample

Examples

sd2extrapRel(sd=2, icc_original=0.5)

mathesong/relfeas documentation built on March 4, 2020, 5:29 a.m.