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ERIC Number: ED571805
Record Type: Non-Journal
Publication Date: 2015-Apr
Pages: 37
Abstractor: As Provided
ISBN: N/A
ISSN: N/A
EISSN: N/A
Semi-Parametric Item Response Functions in the Context of Guessing. CRESST Report 844
Falk, Carl F.; Cai, Li
National Center for Research on Evaluation, Standards, and Student Testing (CRESST)
We present a logistic function of a monotonic polynomial with a lower asymptote, allowing additional flexibility beyond the three-parameter logistic model. We develop a maximum marginal likelihood based approach to estimate the item parameters. The new item response model is demonstrated on math assessment data from a state, and a computationally efficient strategy for choosing the order of the polynomial is demonstrated and tested.
National Center for Research on Evaluation, Standards, and Student Testing (CRESST). 300 Charles E Young Drive N, GSE&IS Building 3rd Floor, Mailbox 951522, Los Angeles, CA 90095-1522. Tel: 310-206-1532; Fax: 310-825-3883; Web site: http://www.cresst.org
Publication Type: Reports - Descriptive
Education Level: Grade 4; Intermediate Grades; Elementary Education
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: National Center for Research on Evaluation, Standards, and Student Testing (CRESST)
IES Funded: Yes
Grant or Contract Numbers: R305D140046