Analytic smoothing for equipercentile equating under the common item nonequivalent populations design

Psychometrika ◽  
1987 ◽  
Vol 52 (1) ◽  
pp. 43-59 ◽  
Author(s):  
Michael J. Kolen ◽  
David Jarjoura
Keyword(s):  
Equipercentile Equating ◽  
Common Item ◽  
The Common

Standard Errors of Equipercentile Equating for the Common Item Nonequivalent Populations Design

1985 ◽  
Vol 10 (2) ◽  
pp. 143-160 ◽  
Author(s):  
David Jarjoura ◽  
Michael J. Kolen
Keyword(s):  
Real Data ◽  
Standard Errors ◽  
Equipercentile Equating ◽  
Large Samples ◽  
Common Item ◽  
Complex Procedure ◽  
Different Populations ◽  
The Common

An equating design in which two groups of examinees from slightly different populations are administered different test forms that have a subset of items in common is widely used. A procedure for equipercentile equating under this design has been previously outlined, but standard errors for this rather complex procedure have not been provided. This paper provides these standard errors and a simulation that verifies the equations for large samples. A real data example is provided for considering issues involved in using these procedures.

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