This computer program for PCs accompanies the paper: Crawford, J. R., Cullum, C. M., Garthwaite, P. H., Lycett, E., & Allsopp, K. J. (2012). Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale. The Clinical Neuropsychologist, 26, 1154-1165. (doi:10.1080/13854046.2012.720713).
The program takes raw subscale scores on the Texas Functional Living Scale (TFLS) and expresses them as Percentile Ranks (PRs). The point estimates of the PRs are accompanied with (Bayesian) interval estimates: these interval estimates quantify the uncertainty arising from using a normative sample to estimate the standing of a case's scores in the normative population. In addition, the program expresses a case's overall T score on the TFLS as a percentile rank and provides an accompanying interval estimate (a parametric method is used to set these latter limits; see paper for details).
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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.
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