Scientific Software International (SSI) publishes statistical data analysis software: LISREL (structural equation model/SEM, survey generalized linear model/SGLIM), 

HLM (hierarchical linear modeling, multilevel model) and Item Response Theory/IRT (BILOG-MG, MULTILOG, PARSCALE)Scientific Software International (SSI) publishes statistical data analysis software: LISREL (structural equation model/SEM, survey generalized linear model/SGLIM), 

HLM (hierarchical linear modeling, multilevel model) and Item Response Theory/IRT (BILOG-MG, MULTILOG, PARSCALE)Scientific Software International (SSI) publishes statistical data analysis software: LISREL (structural equation model/SEM, survey generalized linear model/SGLIM), 

HLM (hierarchical linear modeling, multilevel model) and Item Response Theory/IRT (BILOG-MG, MULTILOG, PARSCALE)

  Upgrades for the full editions of HLM 6 for Windows

Make sure your software is up to date with these free patch files.

   Free 15-day trial edition of HLM 6.06 for Windows
  Free student edition of HLM 6 for Windows

  Upgrades for the full editions of HLM 5 for Windows

Make sure your software is up to date with these free patch files.

To upgrade from HLM 5 to HLM 6, see our price and order form.

  Free downloads

We offer several free resources for HLM users. These files and programs can be downloaded from this page or from our ftp site at ftp://ftp.lisrel.com/hlm/.


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