Scale Shrinkage and the Estimation of Latent Distribution Parameters.

Camilli, Gregory

Notes FAQ Contact Us

Back to results

Peer reviewed

ERIC Number: EJ381188

Record Type: Journal

Publication Date: 1988

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: N/A

EISSN: N/A

Available Date: N/A

Scale Shrinkage and the Estimation of Latent Distribution Parameters.

Camilli, Gregory

Journal of Educational Statistics, v13 n3 p227-41 Fall 1988

The phenomenon of scale shrinkage is examined. Focus is on the pattern of decreasing variances in item response theory scale scores from fall to spring within a grade. It is demonstrated that questions concerning population distributions of true ability can be addressed with empirical Bayes techniques. (TJH)

Descriptors: Academic Ability, Achievement Tests, Bayesian Statistics, Difficulty Level, Elementary Secondary Education, Error of Measurement, Latent Trait Theory, Scoring, Statistical Bias

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

Author Affiliations: N/A