Newsom 1

USP510/610 SEM

Winter 2003

Software

Feature / EQS
http://www.mvsoft.com / AMOS
http://www.smallwaters.com / LISREL
http://www.ssicentral.com / Mplus
http://www.statmodel.com
Imports Data Types / raw ASCII, covariance, SPSS, BMDP, Dbase. Imported data must converted to EQS format. / raw ASCII, Dbase, Excel, FoxPro, Lotus, Access, SPSS / raw ASCII, covariance matrix, SPSS, SAS, BMDP, Dbase, Statistica, Systat, Excel among others. Imported data must be converted to covariance matrix by Prelis, but raw ASCII format can be read directly / raw ASCII, covariance matrix
Graphic interface / Yes / Yes / Yes / No
Estimations methods / ULS, GLS, ML, ML Robust, ADF / ML, ML robust GLS, ADF, ULS or SLS (scale-free least squares), bootstrapping / ULS, GLS, ML, ML Robust, WLS, DWLS / ULS, GLS, ML, multiple ML Robust options, several WLS options, DWLS, Muthen’s CVM
Missing data imputation (EM algorithm) / No (other missing data estimation approaches) / Yes / No (other missing data estimation approaches) / Yes
Fit indices / Many / Many / Many / Limited
Robust ML / Yes / No / Yes / Yes
Bootstrap / Yes / Yes / Yes / No
Categorical data / Yes (AGLS only) / No / Yes / Yes, special features
Latent Class variables / No / No / No / Yes
Multilevel Analysis / Yes (using multigroup approach) / Yes (using multigroup approach) / Yes (using multigroup approach) / Yes, special features
Growth Curve Analysis / Yes / Yes / Yes / Yes

Some less commonly used programs

§  CALIS – a procedures available in SAS with syntax that mimics LISREL or EQS. Has not been updated for a number of years and does not contain many of the newer features. http://www.sas.com

§  Mx – matrix algebra package with fitting functions to allow structural equation modeling and missing data analysis developed by Michael Neale. Freeware. http://views.vcu.edu/mx/

§  COSAN – program developed by Jack McArdle. Freeware http://kiptron.psyc.virginia.edu/disclaimer.html

§  SEPATH – structural modeling software developed by James Steiger. Packaged with Statistica data analysis software. http://www.statsoftinc.com /

§  TETRAD – an exploratory SEM program that searches for the correct causal structure, developed by Spirtes, Glymour & Scheines. http://www.phil.cmu.edu/projects/tetrad/