Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Alternate Test Forms

  • Grant L. IversonEmail author
  • Kyle E. Ferguson
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_1170


Equivalent forms; Parallel forms


Alternate test forms are designed to avoid or reduce content- or item-specific practice effects that are associated with repeated administrations of the same neuropsychological test(s) (Fastenau et al. 2002). Examination of the manuals for many intellectual and neuropsychological tests illustrates that practice effects are common, especially over brief retest intervals (e.g., days or weeks). Regarding test construction, alternate test forms should include the same number of items, and the items should be of equivalent difficulty. Moreover, the test instructions, time limits, examples, and format should be identical to the original instrument developed during standardization, to reduce measurement error (Jackson 2009). Of course, measurement error can never be eliminated. For example, content-sampling error and time-sampling error – inherent in all test-retest paradigms – are always concerns in developing alternate test forms...

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References and Readings

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of PsychiatryBritish Columbia Mental Health and Addictions, University of British ColumbiaVancouverCanada
  2. 2.University of British ColumbiaVancouverCanada