ERIC Number: EJ443853
Record Type: Journal
Publication Date: 1991
Reference Count: N/A
Kernel Smoothing Approaches to Nonparametric Item Characteristic Curve Estimation.
Ramsay, J. O.
Psychometrika, v56 n4 p611-30 Dec 1991
Kernel smoothing methods for nonparametric item characteristic curve estimation are reviewed. A simulation with 500 examinees and real data from 3,000 records of the Graduate Record Examination illustrate the rapidity of kernel smoothing. Even when population curves are three-parameter logistic, simulation suggests no loss of efficiency. (SLD)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Graduate Record Examinations