Download full textERIC Number: ED079351
Record Type: RIE
Publication Date: 1973-May
Pages: 32
Abstractor: N/A
ISBN: N/A
ISSN: N/A
EISSN: N/A
Available Date: N/A
Estimation of Latent Ability and Item Parameters When There Are Omitted Responses.
Lord, Frederic M.
Omitted items cannot properly be treated as wrong when estimating ability and item parameters. A convenient method for utilizing the information provided by omissions is presented. Some theoretical and considerable empirical justification is adduced for the estimates obtained by both old and new methods. (Author)
Descriptors: Mathematical Models, Probability, Psychometrics, Research Reports, Scoring Formulas, Test Results
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: National Science Foundation, Washington, DC.
Authoring Institution: Educational Testing Service, Princeton, NJ.
Grant or Contract Numbers: N/A
Author Affiliations: N/A
