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ERIC Number: ED046981
Record Type: Non-Journal
Publication Date: 1971-Feb
Pages: 12
Abstractor: N/A
Reference Count: N/A
An Analytical Procedure for the Equipercentile Method of Equating Tests.
Lindsay, Carl A.; Prichard, Mark A.
Prior use of the equipercentile method of test equating was based on a graphic procedure which is tedious, subject to smoothing errors, and non-analytical. Recognition of the equipercentile method as a curve-fitting procedure for two cumulative percentage distributions leads to a proposed analytical solution to the problem through use of linear estimates for successive "missing" score points. A complete equipercentile procedure which uses the proposed method and provides linear and quadratic functions for goodness-of-fit and extrapolation is discussed and illustrated with data from a test equating project. A FORTRAN IV program for the complete procedure is available. (Author)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A