CRA2_2r: Model 3.1: MDES Calculator for Two-Level Cluster Random...

Description Usage Arguments Value

View source: R/power_formulas.R

Description

MDEs for Two-Level Cluster Random Assignment Design

Usage

1
2
CRA2_2r(R2_1, R2_2T, P, g, n, J, rho, alpha = 0.05, power = 0.8,
  tails = 2)

Arguments

R2_1

Proportion of variance in level 1 outcome explained by level 1 covariates

R2_2T

Proportion of variance in level 2 outcome explained by level 2 covariates

P

Proportion of the level 2 units randomized to the treatment

g

Number of level 2 Covariates used

n

Mean # of level 1 units per level 2 cluster

J

Number of level 2 units

rho

proportion of variance in outcome that is between clusters

alpha

Probability of a type I error

power

Statistical power (1 - probability of type II error)

tails

One or two tailed test

Value

Minimum Detectable Effect Size


alishinski/CRTpower documentation built on May 22, 2019, 3:38 p.m.