item response theory

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    Item Response theory In variance

    Hi, I am working on Educational assessment item calibration task. I am new to IRT and I have read 100s of papers still could not wrap around my head with invariance property of IRT and item calibration. My question is suppose I have response data of 20,000 students on 10 items, now I want to...
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    Item Response Theory (IRT) and Response Time (Millisecond)

    Greetings from Spain, I have a question My doctoral thesis professor and I want to apply IRT to a series of neuropsychological tests (STROOP, Ekman, Discounting Test among others) The bibliography on the subject is almost nonexistent. Can this model be applied for continuous variables? Can ms...