The item analysis includes proportion, point biserial, and biserial statistics for all response options. Patrick Meyer at the University of Virginia. ITEMQUAL is free software for conducting a classical item analysis and differential item functioning (DIF) analysis. Item responses (ABCD) and keys are typed or pasted into the workbook, and the output automatically populates unlike other programs, CITAS does not require any "running" or experience in psychometric analysis, making it accessible to school teachers and professors. REMP at the University of Massachusetts, USAĬlassical test theory is an approach to psychometric analysis that has weaker assumptions than item response theory and is more applicable to smaller sample sizes.ĬITAS (Classical Item and Test Analysis Spreadsheet) is an free Excel workbook designed to provide scoring and statistical analysis of classroom tests.Important source websites for free psychometric software include: 6 General statistical analysis softwareīecause only a few commercial businesses (most notably Assessment Systems Corporation and Scientific Software International) develop specialized psychometric tools, there exist many free tools developed by researchers and educators.4 Additional item response theory software.
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