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

John R. Crawford, C. Munro Cullum, Paul H. Garthwaite, Emma Lycett, Kate J. Allsopp

Research output: Contribution to journalArticle

1 Citation (Scopus)

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
Original languageEnglish
Pages (from-to)1154-1165
Number of pages12
JournalClinical Neuropsychologist
Volume26
Issue number7
Early online date17 Sep 2012
DOIs
Publication statusPublished - 2012

Fingerprint

Software
Confidence Intervals
Psychology

Keywords

  • IADLs
  • percentile norms
  • interval estimates
  • Bayesian methods
  • computer scoring

Cite this

Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale. / Crawford, John R.; Cullum, C. Munro; Garthwaite, Paul H.; Lycett, Emma; Allsopp, Kate J.

In: Clinical Neuropsychologist, Vol. 26, No. 7, 2012, p. 1154-1165.

Research output: Contribution to journalArticle

Crawford, John R. ; Cullum, C. Munro ; Garthwaite, Paul H. ; Lycett, Emma ; Allsopp, Kate J. / Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale. In: Clinical Neuropsychologist. 2012 ; Vol. 26, No. 7. pp. 1154-1165.
@article{5477180336554fb08997cb80f8f01e2b,
title = "Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale",
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",
keywords = "IADLs, percentile norms, interval estimates, Bayesian methods, computer scoring",
author = "Crawford, {John R.} and Cullum, {C. Munro} and Garthwaite, {Paul H.} and Emma Lycett and Allsopp, {Kate J.}",
year = "2012",
doi = "10.1080/13854046.2012.720713",
language = "English",
volume = "26",
pages = "1154--1165",
journal = "Clinical Neuropsychologist",
issn = "1385-4046",
publisher = "Taylor and Francis Ltd.",
number = "7",

}

TY - JOUR

T1 - Point and interval estimates of percentile ranks for scores on the Texas Functional Living Scale

AU - Crawford, John R.

AU - Cullum, C. Munro

AU - Garthwaite, Paul H.

AU - Lycett, Emma

AU - Allsopp, Kate J.

PY - 2012

Y1 - 2012

N2 - 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

AB - 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

KW - IADLs

KW - percentile norms

KW - interval estimates

KW - Bayesian methods

KW - computer scoring

U2 - 10.1080/13854046.2012.720713

DO - 10.1080/13854046.2012.720713

M3 - Article

VL - 26

SP - 1154

EP - 1165

JO - Clinical Neuropsychologist

JF - Clinical Neuropsychologist

SN - 1385-4046

IS - 7

ER -