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Direct linkLin, Chih-Kai – Language Assessment Quarterly, 2018
With multiple options to choose from, there is always a chance of lucky guessing by examinees on multiple-choice (MC) items, thereby potentially introducing bias in item difficulty estimates. Correct responses by random guessing thus pose threats to the validity of claims made from test performance on an MC test. Under the Rasch framework, the…
Descriptors: Guessing (Tests), Item Response Theory, Multiple Choice Tests, Language Tests
