Psychometric properties of the communication confidence rating scale for aphasia (CCRSA): Phase 1

Leora Cherney*, Edna Babbitt, Patrick Semik, Allen Heinemann

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Confidence is a construct that has not been explored previously in aphasia research. We developed the Communication Confidence Rating Scale for Aphasia (CCRSA) to assess confidence in communicating in a variety of activities and evaluated its psychometric properties using rating scale (Rasch) analysis. The CCRSA was administered to 21 individuals with aphasia before and after participation in a computer-based language therapy study. Person reliability of the 8-item CCRSA was.77. The 5-category rating scale demonstrated monotonic increases in average measures from low to high ratings. However, one item ("I follow news, sports, stories on TV/movies") misfit the construct defined by the other items (mean square infit = 1.69, item-measure correlation =.41). Deleting this item improved reliability to.79; the 7 remaining items demonstrated excellent fit to the underlying construct, although there was a modest ceiling effect in this sample. Pre-to posttreatment changes on the 7-item CCRSA measure were statistically significant using a paired samples t test. Findings support the reliability and sensitivity of the CCRSA in assessing participants' self-report of communication confidence. Further evaluation of communication confidence is required with larger and more diverse simples.

Original languageEnglish (US)
Pages (from-to)352-360
Number of pages9
JournalTopics in stroke rehabilitation
Volume18
Issue number4
DOIs
StatePublished - Jan 1 2011

Keywords

  • Rasch analyses
  • aphasia
  • assessment
  • communication confidence
  • rating scale

ASJC Scopus subject areas

  • Rehabilitation
  • Community and Home Care
  • Clinical Neurology

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