f.star.test: f.star.test

In DACF: Data Analysis with Ceiling and/or Floor Data

Description

conduct a Brown-Forsythe F star test

Usage

f.star.test(means, variances, ns)

Arguments

means	a (non-empty) numeric vector of the group means
variances	a (non-empty) numeric vector of the group variances
ns	a (non-empty) numeric vector of sample sizes per group

Value

statistic	the value of the adjusted Brown-Forsythe F star statistic
p.value	the p-value for the test
est.f.squared	effect size estimate as in Cohen's f squared

Examples

# a f star test for three-group mean comparison
f.star.test(c(-.2,0,.2),c(1,1,1),c(100,100,100))
f.star.test(c(0,0,1),c(2,1,3),c(100,100,100))

Example output

$statistic
[1] 4

$p.value
[1] 0.01931108

$est.f.squared
[1] 0.02666667

$statistic
[1] 16.66667

$p.value
[1] 1.577447e-07

$est.f.squared
[1] 0.1111111

DACF documentation built on May 2, 2019, 8:16 a.m.