required_n: Attrition and incompleteness calculator

View source: R/required_n.R

required_nR Documentation

Attrition and incompleteness calculator

Usage

required_n(final, attrition = 0.1, trials = 1)

Arguments

final

integer target n

attrition

The decimal rate of attrition from 0 (0

\item

trialsAn integer number of measurement points over which attrition occurs (i.e. after the first measurement). If calculating loss to missingness, specify as 1.

An integer of the required starting sample A function for calculating the required starting sample to correct for attrition and incomplete data.


Lingtax/Qualtrics documentation built on July 4, 2022, 3:24 a.m.