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2013
Classical test theory (CTT) is the foundational theory of measurement of mental abilities. At its core, CTT describes the relationship between observed composite scores on a test and a presumed but unobserved “true” score for an examinee. CTT is called “classical” because it is thought to be the first operational use of mathematics to characterize this
Ze Wang, Steven J. Osterlind
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Classical test theory (CTT) is the foundational theory of measurement of mental abilities. At its core, CTT describes the relationship between observed composite scores on a test and a presumed but unobserved “true” score for an examinee. CTT is called “classical” because it is thought to be the first operational use of mathematics to characterize this
Ze Wang, Steven J. Osterlind
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Medical Care, 2006
Classical test theory (CTT) comprises a set of concepts and methods that provide a basis for many of the measurement tools currently used in health research. The assumptions and concepts underlying CTT are discussed. These include item and scale characteristics that derive from CTT as well as types of reliability and validity.
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Classical test theory (CTT) comprises a set of concepts and methods that provide a basis for many of the measurement tools currently used in health research. The assumptions and concepts underlying CTT are discussed. These include item and scale characteristics that derive from CTT as well as types of reliability and validity.
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2016
Classical Test Theory (CTT), also known as the true score theory, refers to the analysis of test results based on test scores. The statistics produced under CTT include measures of item difficulty, item discrimination, measurement error and test reliability.
Margaret Wu, Hak Ping Tam, Tsung-Hau Jen
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Classical Test Theory (CTT), also known as the true score theory, refers to the analysis of test results based on test scores. The statistics produced under CTT include measures of item difficulty, item discrimination, measurement error and test reliability.
Margaret Wu, Hak Ping Tam, Tsung-Hau Jen
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2019
Classical test theory (CTT) rests on the assumption of a normal distribution of scores in some population and assumes scores are not at the extremes of the possible range. In CTT, a person’s observed test score is a sum of a true score and an error score.
David Andrich, Ida Marais
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Classical test theory (CTT) rests on the assumption of a normal distribution of scores in some population and assumes scores are not at the extremes of the possible range. In CTT, a person’s observed test score is a sum of a true score and an error score.
David Andrich, Ida Marais
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Generalizability Theory and Classical Test Theory
Applied Measurement in Education, 2010Broadly 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 ...
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