Abstract: The paper addresses the procedures to adopt in validating Mathematics Test Items (MTI). The content validity was examined based on some experts’ judgment on the development of the items. The analysis of the 100 self-developed MTI with a sample of 200 testees was based on winsteps analysis. The result showed that the 86 items not only met the Rasch model assumption of measurement construct but also demonstrated good psychometric properties.
Keywords: item difficulty, Rasch model, unidimensionality and construct validity.
Title: Construct Validity of Mathematics Test Items Using the Rasch Model
Author: ALIYU, R. TAIWO
International Journal of Social Science and Humanities Research
ISSN 2348-3156 (Print), ISSN 2348-3164 (online)
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