Effects of Item Difficulty Heterogeneity on the Estimation of True-Score and Classification Consistency [microform] / Judith A. Spray and Catherine J. Welch.

The purpose of this study was to examine the effect that large within-examinee item difficulty variability had on estimates of the proportion of consistent classification of examinees into mastery categories over two test administrations. The classification consistency estimate was based on a single...

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Bibliographic Details

Online Access:	Request ERIC Document
Main Author:	Spray, Judith A.
Other Authors:	Welch, Catherine J.
Format:	Microfilm Book
Language:	English
Published:	[S.l.] : Distributed by ERIC Clearinghouse, 1986.
Subjects:	Adults. Difficulty Level. Estimation (Mathematics) Mathematical Models. Maximum Likelihood Statistics. Nurses. Postsecondary Education. Regression (Statistics) Scores. Simulation. Statistical Analysis. Test Items.