size.ci.lc.mean.bs: Linear Contrast of Means (Between Subjects)

View source: R/lc.mean.bs.R

size.ci.lc.mean.bsR Documentation

Linear Contrast of Means (Between Subjects)

Description

Computes sample size required to estimate a linear contrast of population mean with desired precision in a between-subjects design.

Arguments

alpha

alpha level for 1-alpha confidence

var

planning value of average within-group DV variance

w

desired confidence interval width

c

vector of contrast coefficients

Value

n

required sample size


cwendorf/dgb documentation built on May 3, 2022, 9:35 p.m.