Test Equating pp 105-136 | Cite as

Nonequivalent Groups—Linear Methods

  • Michael J. Kolen
  • Robert L. Brennan
Part of the Springer Series in Statistics book series (SSS)


Chapter 1 introduced the common-item nonequivalent groups design. For this design, two groups of examinees from different populations are each administered different test forms that have a set of items in common This design often is used when only one form of a test can be administered on a given test date. As discussed in Chapter 1, the set of common items should be as similar as possible to the full-length forms in both content and statistical characteristics.


True Score Form Difference Score Method Common Item Synthetic Population 
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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Michael J. Kolen
    • 1
  • Robert L. Brennan
    • 2
  1. 1.American College TestingIowa CityUSA
  2. 2.University of IowaIowa CityUSA

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