TODO: Skip to main content
Top
Gepubliceerd in:

01-11-2011

A 7-item version of the fatigue severity scale has better psychometric properties among HIV-infected adults: an application of a Rasch model

Auteurs: Anners Lerdal, Anders Kottorp, Caryl Gay, Bradley E. Aouizerat, Carmen J. Portillo, Kathryn A. Lee

Gepubliceerd in: Quality of Life Research | Uitgave 9/2011

Log in om toegang te krijgen
share
DELEN

Deel dit onderdeel of sectie (kopieer de link)

  • Optie A:
    Klik op de rechtermuisknop op de link en selecteer de optie “linkadres kopiëren”
  • Optie B:
    Deel de link per e-mail

Abstract

Purpose

To examine the psychometric properties of the 9-item Fatigue Severity Scale (FSS) using a Rasch model application.

Methods

A convenience sample of HIV-infected adults was recruited, and a subset of the sample was assessed at 6-month intervals for 2 years. Socio-demographic, clinical, and symptom data were collected by self-report questionnaires. CD4 T-cell count and viral load measures were obtained from medical records. The Rasch analysis included 316 participants with 698 valid questionnaires.

Results

FSS item 2 did not advanced monotonically, and items 1 and 2 did not show acceptable goodness-of-fit to the Rasch model. A reduced FSS 7-item version demonstrated acceptable goodness-of-fit and explained 61.2% of the total variance in the scale. In the FSS-7 item version, no uniform Differential Item Functioning was found in relation to time of evaluation or to any of the socio-demographic or clinical variables.

Conclusion

This study demonstrated that the FSS-7 has better psychometric properties than the FSS-9 in this HIV sample and that responses to the different items are comparable over time and unrelated to socio-demographic and clinical variables.
Literatuur
Deze inhoud is alleen zichtbaar als je bent ingelogd en de juiste rechten hebt.
Metagegevens
Titel
A 7-item version of the fatigue severity scale has better psychometric properties among HIV-infected adults: an application of a Rasch model
Auteurs
Anners Lerdal
Anders Kottorp
Caryl Gay
Bradley E. Aouizerat
Carmen J. Portillo
Kathryn A. Lee
Publicatiedatum
01-11-2011
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 9/2011
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-011-9877-8