Index-based short-form of the WAIS-III with accompanying analysis of reliability and abnormality of differences


A program for PCs that implements a regression equation for the estimation of an individual's premorbid verbal fluency (FAS) performance from NART performance. The program compares the estimated premorbid fluency score with the score obtained from testing. The regression equation was built in a healthy UK sample (N=142) and is widely used in research and practice. To download click here. A zipped version is also available.

For essential background details see the accompanying paper:

Crawford, J. R., Moore, J. W. & Cameron, I. M. (1992). Verbal fluency: a NART-based equation for the estimation of premorbid performance. British Journal of Clinical Psychology, 31, 327-329.

reprint as pdf

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Once downloaded, the programs can be run by any of the normal Windows procedures i.e. by clicking on file in File Manager or by placing on desktop etc.

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The author of this software (John R Crawford) and the University of Aberdeen make no representations about the suitability of the software or about any content or information made accessible by the software, for any purpose.

The software is provided 'as is' without express or implied warranties, including warranties of merchantability and fitness for a particular purpose or noninfringement.

The software is provided gratuitously and, accordingly, the author shall not be liable under any theory or any damages suffered by you or any user of the software.

If there are any problems please e-mail me at Further contact details are available in the footer of this page.