multilevel2.7 package

Multilevel Functions

ad.m

Average deviation around mean or median

ad.m.sim

Simulate significance of average deviation around mean or median

awg

Brown and Hauenstein (2005) awg agreement index

boot.icc

Bootstrap ICC values in 2-level data

cordif.dep

Estimate whether two dependent correlations differ

cordif

Estimate whether two independent correlations differ

cronbach

Estimate Cronbach's Alpha

dgm.code

Create Coding Matrix for Discontinuous Growth Model

gmeanrel

Group Mean Reliability from an lme model (nlme package)

graph.ran.mean

Graph Random Group versus Actual Group distributions

ICC1

Estimate Intraclass Correlation Coefficient 1 or ICC(1) from an aov mo...

ICC2

Intraclass Correlation Coefficient 2 or ICC(2) from an aov model

item.total

Item-total correlations

make.univ

Convert data from multivariate to univariate form

mix.data

Randomly mix grouped data

mult.icc

Multiple ICCs from a dataset

mult.make.univ

Convert two or more variables from multivariate to univariate form

quantile.agree.sim

S3 method for class 'agree.sim'

quantile.disagree.sim

S3 method for class 'disagree.sim'

quantile.rgr.waba

S3 method for class 'rgr.waba'

ran.group

Randomly mix grouped data and return function results

rgr.agree

Random Group Resampling for Within-group Agreement

rgr.ols

Random Group Resampling OLS Regression

rgr.waba

Random Group Resampling of Covariance Theorem Decomposition

rmv.blanks

Remove blanks spaces from non-numeric variables imported from SPSS dat...

rtoz

Conducts an r to z transformation

rwg.j.lindell

Lindell et al. r*wg(j) agreement index for multi-item scales

rwg.j

James et al., (1984) agreement index for multi-item scales

rwg.j.sim

Simulate rwg(j) values from a random null distribution

rwg

James et al., (1984) agreement index for single item measures

rwg.sim

Simulate rwg values from a random null distribution

sam.cor

Generate a Sample that Correlates a Given Vector

sim.icc

Simulate 2-level ICC(1) values with and without level-1 correlation

sim.mlcor

Simulate a multilevel correlation

simbias

Simulate Standard Error Bias in Non-Independent Data

sobel

Estimate Sobel's (1982) Test for Mediation

summary.agree.sim

S3 method for class 'agree.sim'

summary.disagree.sim

S3 method for class 'disagree.sim'

summary.rgr.agree

S3 method for class 'rgr.agree'

summary.rgr.waba

S3 method for class 'rgr.waba'

waba

Covariance Theoreom Decomposition of Bivariate Two-Level Correlation

Tools used by organizational researchers for the analysis of multilevel data. Includes four broad sets of tools. First, functions for estimating within-group agreement and reliability indices. Second, functions for manipulating multilevel and longitudinal (panel) data. Third, simulations for estimating power and generating multilevel data. Fourth, miscellaneous functions for estimating reliability and performing simple calculations and data transformations.