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    • Modular Open-Source Software for Item Factor Analysis 

      Joshua N. Pritikin; Micheal D. Hunter; Steven M. Boker (Educational and Psychological Measurement, 2014-10-31)
      This article introduces an item factor analysis (IFA) module for OpenMx, a free, open-source, and modular statistical modeling package that runs within the R programming environment on GNU/Linux, Mac OS X, and Microsoft ...