size.test.cor: Sample size for a test of a Pearson or partial correlation

In statpsych: Statistical Methods for Psychologists

Sample size for a test of a Pearson or partial correlation

Description

Computes the sample size required to test a population Pearson or a partial correlation with desired power. Set s = 0 for a Pearson correlation.

Usage

size.test.cor(alpha, pow, cor, s, h)

Arguments

alpha	alpha level for hypothesis test
pow	desired power
cor	planning value of correlation
s	number of control variables
h	null hypothesis value of correlation

Value

Returns the required sample size

Examples

size.test.cor(.05, .9, .45, 0, 0)

# Should return:
# Sample size
#          48
 

statpsych documentation built on Sept. 11, 2024, 7:42 p.m.