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ERIC Number: EJ260973
Record Type: CIJE
Publication Date: 1982-Feb
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
A Table of Upper-Lower Number-Right Difference (d) as an Index of Item Discriminatory Power.
Oluikpe, G.C.
British Journal of Educational Psychology, v52 pt1 p121-24 Feb 1982
Presents a table of discriminatory values for selecting test items based on mean differences in responses between upper and lower scorers in an normally distributed population. Provides a means for classifying items as poor, fair, or good. Describes a simple method for rank ordering accepted items. (Author/MJL)
Publication Type: Journal Articles; Tests/Questionnaires
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A