sdtot2mean2: Calculate mean2 from the total SD

In mathesong/relfeas: Reliability for Feasibility Analysis

Description

Calculate mean2 from the total SD

Usage

sdtot2mean2(sd_total, n1, mean1 = 0, sd1 = 1, n2 = n1, sd2 = sd1)

Arguments

sd_total	Total SD over groups: i.e. of the combined sample.
n1	Number of measurements in group 1.
mean1	Mean of group 1. Optional: defaults to 0 if only interested in Cohen's D output.
sd1	SD of group 1. Optional: default is 1, in which case sd_total is a proportional increase in SD.
n2	Number of measurements in group 2. Optional: defaults to n1.
sd2	SD of group 2. Optional: defaults to sd1.

Value

List containing mean2 in positive and negative directions, the total mean in positive and negative directions, Cohen's D and the percentage difference.

Examples

sdtot2mean2(sd_total=1.2, n1=20)

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