meandiff_CI: Function to compute CI around the raw mean difference

In mdelacre/deffectsize: Point effect size estimates and confidence intervals

Function to compute CI around the raw mean difference

Description

Function to compute CI around the raw mean difference

Usage

meandiff_CI(m1, m2, sd1, sd2, n1, n2, conf.level, var.equal, alternative)

Arguments

m1	the average score of the first group
m2	the average score of the second group
sd1	the standard deviation the first group
sd2	the standard deviation the second group
n1	the first sample size
n2	the second sample size
conf.level	confidence level of the interval
var.equal	a logical variable indicating whether to assume equality of population variances. If TRUE the pooled variance is used to estimate the standard error. Otherwise, the standard error is estimated based on unpooled variance.
alternative	a character string specifying the alternative hypothesis, must be one of "two.sided" (default), "greater" or "less".

Value

Returns raw mean difference, (1-alpha)% confidence interval around mean difference, standard error

mdelacre/deffectsize documentation built on June 15, 2022, 11:47 p.m.