The Area between Two Item Characteristic Curves

1988/12/01 by Nambury S. Raju · 421 citations
Computer Science · Decision Sciences · Mathematics · Psychology · #Advanced Statistical Modeling Techniques #Cognitive Abilities and Testing #Econometrics #Item response theory #Mathematics #Psychometric Methodologies and Testing #Psychometrics #Statistics

paper · doi:10.1007/bf02294403

published in Psychometrika 53(4), 495-502 (Springer Science+Business Media)

openalex publication_date 1988/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/25

Abstract

Formulas for computing the exact signed and unsigned areas between two item characteristic curves (ICCs) are presented. It is further shown that when the c parameters are unequal, the area between two ICCs is infinite. The significance of the exact area measures for item bias research is discussed.

Citations

• Marginal Maximum Likelihood Estimation of Item Parameters: Application of an EM Algorithm

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