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Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale

Crawford, John R.; Cullum, C.Munroe; Garthwaite, Paul H.; Lycett, Emma and Allsopp, Kate J. (2012). Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale. Clinical Neuropsychologist, 26(7) pp. 1154–1165.

DOI (Digital Object Identifier) Link: https://doi.org/10.1080/13854046.2012.720713
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Abstract

Point and interval estimates of percentile ranks are useful tools in assisting with the interpretation of neurocognitive test results. We provide percentile ranks for raw subscale scores on the Texas Functional Living Scale (TFLS; Cullum, Weiner, & Saine, 2009) using the TFLS standardization sample data (N = 800). Percentile ranks with interval estimates are also provided for the overall TFLS T score. Conversion tables are provided along with the option of obtaining the point and interval estimates using a computer program written to accompany this paper (TFLS_PRs.exe). The percentile ranks for the subscales offer an alternative to using the cumulative percentage tables in the test manual and provide a useful and quick way for neuropsychologists to assimilate information on the case's profile of scores on the TFLS subscales. The provision of interval estimates for the percentile ranks is in keeping with the contemporary emphasis on the use of confidence intervals in psychological statistics

Item Type: Journal Item
Copyright Holders: 2012 Psychology Press
ISSN: 1744-4144
Keywords: IADLs; percentile norms; interval estimates; Bayesian methods; computer scoring
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics
Faculty of Science, Technology, Engineering and Mathematics (STEM)
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Item ID: 36584
Depositing User: Sara Griffin
Date Deposited: 12 Feb 2013 09:11
Last Modified: 07 Dec 2018 10:13
URI: http://oro.open.ac.uk/id/eprint/36584
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