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Introduction to Psychology and Leadership. Rank-Biserial Correlation as an Item Discrimination [microform]
Bib ID 5239067
Format BookBook, MicroformMicroform, OnlineOnline
Author
Westinghouse Learning Corp., Annapolis, MD
 
Online Versions
Description [Washington, D.C.] : Distributed by ERIC Clearinghouse, 1970 
16 p. 
Summary

Written as a technical report for the leadership course of the United States Naval Academy (see the final reports which summarize the course development project, EM 010 418, EM 010 419, and EM 010 484), this paper examines the use and interpretation of the rank-biserial correlation as an index of item discrimination. The advantages and disadvantages of this index are compared with those of alternative indices derived from the response of upper and lower groups divided on the basis of total test scores. Computational procedures and tests of statistical significance for the rank-biserial correlation are presented. Appropriate correction for the spurious correlation arising from the contribution of the item to total scores is also provided. (Author/SH)

Notes

Sponsoring Agency: National Center for Educational Research and Development (DHEW/OE), Washington, DC.

Contract Number: N00600-68-C-1525.

ERIC Note: See also EM 010 418 and EM 010 419.

May also be available online. Address as at 14/8/18: https://eric.ed.gov/

Reproduction Microfiche. [Washington D.C.]: ERIC Clearinghouse microfiches : positive. 
Subjects Comparative Analysis.  |  Correlation.  |  Scores.  |  Statistical Analysis.
Other authors/contributors Westinghouse Learning Corp., Annapolis, MD  |  Naval Academy, Annapolis, MD
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