The Information Function for the One-Parameter Logistic Model: Is it Reliability?  

Oleh:

Doran, Harold C.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 65 no. 05 (Oct. 2005), page 665-675.
Topik: reliability; information function; standard error of measurement; Rasch; item response theory; classical test theory
Fulltext: 665.pdf (98.46KB)

Isi artikel

The information function is an important statistic in item response theory (IRT) applications. Although the information function is often described as the IRT version of reliability, it differs fromthe classical notion of reliability froma critical perspective: replication. This article first explores the information function for the one-parameter model in detail and suggests an alternative method for its computation. Second, the difference between the IRT and classical test theory standard errors of measurement is discussed.

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