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Effects of Examinee Response Changes on Item and Test Characteristics.
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Crocker, Linda; Benson, Jeri – 1977
The initial study was based on responses of 103 examinees on an objective classroom test. Results indicated that response changes increased item difficulties as well as biserial and point biserial correlations. Test reliability was not decreased. This implies that not all students benefit from changing initial responses. The personal biserial…
Descriptors: Achievement Tests, Correlation, Difficulty Level, Graduate Students