ERIC Number: EJ649887
Record Type: Journal
Publication Date: 2002
Reference Count: N/A
Items by Design: The Impact of Systematic Feature Variation on Item Statistical Characteristics.
Enright, Mary K.; Morley, Mary; Sheehan, Kathleen M.
Applied Measurement in Education, v15 n1 p49-74 2002
Studied the impact of systematic item feature variation on item statistical characteristics and the degree to which such information could be used as collateral information to supplement examinee performance data and reduce pretest sample size by generating 2 families of 48 word problem variants for the Graduate Record Examinations. Results with 24 test sections and random samples of 1,000 examinees or more demonstrate the potential of creating item variants systematically. (SLD)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Graduate Record Examinations