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What is Differential Test Functioning in Winsteps about?

This document provides a tutorial on differential test functioning (DTF) and differential item functioning (DIF) analysis using the Winsteps software. It demonstrates how to analyze a dataset twice, once for males and once for females, and compare the item difficulties to check for DTF. It then shows how to perform a combined analysis and check for DIF on individual items while holding other factors constant. The tutorial generates an Excel scatter plot comparing item difficulties between males and females

Author

setyawarno

Language

EN