Test-retest stability of word retrieval in aphasic discourse

Research output: Contribution to journalArticleResearchpeer-review

21 Citations (Scopus)

Abstract

Purpose: This study examined the test-retest stability of select word-retrieval measures in the discourses of people with aphasia who completed a 5-stimulus discourse task. Method: Discourse samples across 3 sessions from 12 individuals with aphasia were analyzed for the stability of measures of informativeness, efficiency, main concepts, noun and verb retrieval, word-finding difficulty, and lexical diversity. Values for correlation coefficients and the minimal detectable change score were used to assess stability for research and clinical decision making. Results: Measures stable enough to use in group research studies included the number of words; the number of correct information units (CIUs); the number of accurate-complete, accurate-incomplete, and absent main concepts; the percentage of T-units that had word-finding behaviors of any kind; the percentage of T-units that contained empty words; and a lexical diversity measure. Words per minute, CIUs per minute, and the percentage of T-units that contained time fillers or delays were sufficiently stable to use when making clinical decisions about an individual. Conclusion: Although several of the measures demonstrated acceptable stability for group research studies, relatively few were sufficiently stable for making clinical decisions about individuals on the basis of a single administration.

Original languageEnglish
Pages (from-to)966-978
Number of pages13
JournalJournal of Speech, Language, and Hearing Research
Volume57
Issue number3
DOIs
StatePublished - 1 Jan 2014

Fingerprint

Aphasia
discourse
speech disorder
Research
stimulus
Group
decision making
efficiency
Clinical Decision-Making
Word Retrieval
Discourse
Aphasic
T-units
Clinical Decision Making
Values
Word Finding
Research Groups

Keywords

  • Anomia
  • Aphasia
  • Discourse analysis

Cite this

@article{5d6f36d7f2104d4f8610d630110ab71b,
title = "Test-retest stability of word retrieval in aphasic discourse",
abstract = "Purpose: This study examined the test-retest stability of select word-retrieval measures in the discourses of people with aphasia who completed a 5-stimulus discourse task. Method: Discourse samples across 3 sessions from 12 individuals with aphasia were analyzed for the stability of measures of informativeness, efficiency, main concepts, noun and verb retrieval, word-finding difficulty, and lexical diversity. Values for correlation coefficients and the minimal detectable change score were used to assess stability for research and clinical decision making. Results: Measures stable enough to use in group research studies included the number of words; the number of correct information units (CIUs); the number of accurate-complete, accurate-incomplete, and absent main concepts; the percentage of T-units that had word-finding behaviors of any kind; the percentage of T-units that contained empty words; and a lexical diversity measure. Words per minute, CIUs per minute, and the percentage of T-units that contained time fillers or delays were sufficiently stable to use when making clinical decisions about an individual. Conclusion: Although several of the measures demonstrated acceptable stability for group research studies, relatively few were sufficiently stable for making clinical decisions about individuals on the basis of a single administration.",
keywords = "Anomia, Aphasia, Discourse analysis",
author = "Mary Boyle",
year = "2014",
month = "1",
day = "1",
doi = "10.1044/2014_JSLHR-L-13-0171",
language = "English",
volume = "57",
pages = "966--978",
journal = "Journal of Speech, Language, and Hearing Research",
issn = "1092-4388",
publisher = "American Speech-Language-Hearing Association (ASHA)",
number = "3",

}

Test-retest stability of word retrieval in aphasic discourse. / Boyle, Mary.

In: Journal of Speech, Language, and Hearing Research, Vol. 57, No. 3, 01.01.2014, p. 966-978.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Test-retest stability of word retrieval in aphasic discourse

AU - Boyle, Mary

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Purpose: This study examined the test-retest stability of select word-retrieval measures in the discourses of people with aphasia who completed a 5-stimulus discourse task. Method: Discourse samples across 3 sessions from 12 individuals with aphasia were analyzed for the stability of measures of informativeness, efficiency, main concepts, noun and verb retrieval, word-finding difficulty, and lexical diversity. Values for correlation coefficients and the minimal detectable change score were used to assess stability for research and clinical decision making. Results: Measures stable enough to use in group research studies included the number of words; the number of correct information units (CIUs); the number of accurate-complete, accurate-incomplete, and absent main concepts; the percentage of T-units that had word-finding behaviors of any kind; the percentage of T-units that contained empty words; and a lexical diversity measure. Words per minute, CIUs per minute, and the percentage of T-units that contained time fillers or delays were sufficiently stable to use when making clinical decisions about an individual. Conclusion: Although several of the measures demonstrated acceptable stability for group research studies, relatively few were sufficiently stable for making clinical decisions about individuals on the basis of a single administration.

AB - Purpose: This study examined the test-retest stability of select word-retrieval measures in the discourses of people with aphasia who completed a 5-stimulus discourse task. Method: Discourse samples across 3 sessions from 12 individuals with aphasia were analyzed for the stability of measures of informativeness, efficiency, main concepts, noun and verb retrieval, word-finding difficulty, and lexical diversity. Values for correlation coefficients and the minimal detectable change score were used to assess stability for research and clinical decision making. Results: Measures stable enough to use in group research studies included the number of words; the number of correct information units (CIUs); the number of accurate-complete, accurate-incomplete, and absent main concepts; the percentage of T-units that had word-finding behaviors of any kind; the percentage of T-units that contained empty words; and a lexical diversity measure. Words per minute, CIUs per minute, and the percentage of T-units that contained time fillers or delays were sufficiently stable to use when making clinical decisions about an individual. Conclusion: Although several of the measures demonstrated acceptable stability for group research studies, relatively few were sufficiently stable for making clinical decisions about individuals on the basis of a single administration.

KW - Anomia

KW - Aphasia

KW - Discourse analysis

UR - http://www.scopus.com/inward/record.url?scp=84902772277&partnerID=8YFLogxK

U2 - 10.1044/2014_JSLHR-L-13-0171

DO - 10.1044/2014_JSLHR-L-13-0171

M3 - Article

VL - 57

SP - 966

EP - 978

JO - Journal of Speech, Language, and Hearing Research

JF - Journal of Speech, Language, and Hearing Research

SN - 1092-4388

IS - 3

ER -