Empirical determination of sampling distributions of item discrimination indices and a reliability coefficient [microform] / Frank Baker.

The results of this study clearly indicate the inadvisability of attempting to perform item analyses based upon small samples. The single item discrimination index based upon samples of size 15, 30, or 60, has little or no value. Those based upon samples of 120 are only indicative in nature. (lp)

Bibliographic Details

Online Access:	Request ERIC Document
Main Author:	Baker, Frank
Corporate Author:	Wisconsin Univ., Madison. School of Education
Format:	Microfilm Book
Language:	English
Published:	[S.l.] : Distributed by ERIC Clearinghouse, 1962.
Subjects:	Evaluation. Item Analysis. Statistical Analysis. Statistical Studies.