Practical Applications of Item Characteristic Curve Theory

Author(s):

Lord, Frederic M.

Publication Year:

1977

Report Number:

RB-77-03

Source:

ETS Research Bulletin

Document Type:

Report

Page Count:

48

Subject/Key Words:

Mathematical Applications, Psychometrics, Scoring, Statistics, Test Construction, Test Theory

Abstract

The following practical applications of item characteristic curve theory are discussed (or referenced): l) estimation of observed-score distributions and parameters (mean, variance, and reliability coefficient), 2) selecting items to build a conventional test, 3) redesigning a conventional test, 4) optimal item-scoring weights, 5) mastery testing, 6) tailored testing, 7) two-stage testing, 8) multilevel testing, 9) equating, 10) formula scoring , 11) determining whether two tests measure the same trait, 12) checking the appropriateness of a test for individual examinees, 13) measuring item bias towards minority or other groups. (48pp.)

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• http://dx.doi.org/10.1002/j.2333-8504.1977.tb01128.x