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Chandra Shekar Karnati – ProQuest LLC, 2021
The purpose of this study was to examine the presence of gender and ELL Differential Item Functioning (DIF) in a teacher-created mathematics benchmark test in one public charter school district in Northeast Georgia. DIF occurs when an item behaves differently in different subgroups, rather than measuring a test taker's true ability. The geometry…
Descriptors: Mathematics Tests, Delphi Technique, Test Items, Test Construction