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Individualized Testing and Item Characteristic Curve Theory

Lord, Frederic M.
Publication Year:
Report Number:
ETS Research Bulletin
Document Type:
Page Count:
Subject/Key Words:
National Science Foundation (NSF), Achievement Tests, Individualized Tests, Item Response Theory, Mathematical Models, Predictive Measurement, Test Construction, Test Theory, Test Validity


An elementary survey of item characteristic curve theory, centered around the problem of individualized (tailored) testing, is presented. Following the introdcution, discussions are provided of the following: Test Theory for Itemized Tests: The Guttman Scale: Item Characteristic Curve Theory: An Alternative Model: Specialization, Application, and Evaluation: Pretesting: The Statistical Estimation of Ability: A Simpler Procedure for Estimating Ability; Stochastic Approximation; The Staircase Method for Selecting the Test Questions; Scoring the Answers; Evaluation of Testing Methods; and Relation to Psychophysical Methods. An extensive list of references is provided. (DB) (39pp.)

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