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Item Analysis

Item analysis is the foundational psychometric procedure for evaluating the quality of individual test or scale items within the Classical Test Theory (CTT) framework, as systematised by Allen and Yen (1979) and Crocker and Algina (1986). It produces an item difficulty index, an item discrimination index, and a distractor analysis for each item, enabling test developers to identify items that are too easy, too hard, or failing to separate high- and low-ability respondents.

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Item Analysis (Classical Test Theory)

Taksonoomiline meetodikirje · latent-structure / psychometrics

Allen, M. J. & Yen, W. M. (1979). Introduction to Measurement Theory. Brooks/Cole. · ISBN 978-0818501333
Crocker, L. & Algina, J. (1986). Introduction to Classical and Modern Test Theory. Holt, Rinehart & Winston. · ISBN 978-0030616341

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