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ERIC Number: EJ910781
Record Type: Journal
Publication Date: 2011
Pages: 21
Abstractor: As Provided
ISSN: ISSN-0895-7347
Generalizability Theory and Classical Test Theory
Brennan, Robert L.
Applied Measurement in Education, v24 n1 p1-21 2011
Broadly conceived, reliability involves quantifying the consistencies and inconsistencies in observed scores. Generalizability theory, or G theory, is particularly well suited to addressing such matters in that it enables an investigator to quantify and distinguish the sources of inconsistencies in observed scores that arise, or could arise, over replications of a measurement procedure. Classical test theory is an historical predecessor to G theory and, as such, it is sometimes called a parent of G theory. Important characteristics of both theories are considered in this article, but primary emphasis is placed on G theory. In addition, the two theories are briefly compared with item response theory. (Contains 1 table and 17 footnotes.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A