SEMModComp, a software package for conducting likelihood ratio tests for mean and covariance structure modeling is described. The package is written in R and freely available for download or on request.
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Levy, R., & Hancock, G.R. ( 2007). A framework of statistical tests for comparing mean and covariance structure models. Multivariate Behavioral Research , 42, 33-66.
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R Development Core Team. (2008). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Available from http://www.R-project.org
