Intermediate

A Primer on Classical Test Theory and Item Response Theory for Assessments in Medical Education.

Content Type: Documents

Publication Year 2009

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Country: Global

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ABSTRACT FULL TEXT TAXONOMY

A test score is a number which purportedly reflects a candidate's proficiency in some clearly defined knowledge or skill domain. A test theory model is necessary to help us better understand the relationship that exists between the observed (or actual) score on an examination and the underlying proficiency in the domain, which is generally unobserved. Common test theory models include classical test theory (CTT) and item response theory (IRT). The widespread use of IRT models over the past several decades attests to their importance in the development and analysis of assessments in medical education. Item response theory models are used for a host of purposes, including item analysis, test form assembly and equating. Although helpful in many circumstances, IRT models make fairly strong assumptions and are mathematically much more complex than CTT models. Consequently, there are instances in which it might be more appropriate to use CTT, especially when common assumptions of IRT cannot be readily met, or in more local settings, such as those that may characterise many medical school examinations.

Title: A Primer on Classical Test Theory and Item Response Theory for Assessments in Medical Education.

Description:

Content Type: Documents

Publication Year: 2009

Publisher: Blackwell Publishing Ltd. 2009 MEDICAL EDUCATION 2010

Assessment Topic: Analysing

Assessment Sub Topic: Classical Test Theory and Item Response Theory

Level: Intermediate

Language: English

License: Unspecified

Country: Global

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Link: https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1365-2923.2009.03425.x

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A Primer on Classical Test Theory and Item Response Theory for Assessments in Medical Education.

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