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Quality of Life Research
Published in: Quality of Life Research 6/2013

01-08-2013 | Brief Communication

Development of a short version of the Lee Visual Analogue Fatigue Scale in a sample of women with HIV/AIDS: a Rasch analysis application

Authors: Anners Lerdal, Anders Kottorp, Caryl L. Gay, Kathryn A. Lee

Published in: Quality of Life Research | Issue 6/2013

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Abstract

Purpose

To develop a psychometrically sound short version of the 13-item Lee Fatigue Scale using a Rasch model application.

Methods

A convenience sample of 102 women with HIV/AIDS completed the Lee Fatigue Scale in the morning and evening. The scale was assessed using a Rasch analysis approach. We used a stepwise approach of removing the item with the least goodness-of-fit for internal scale validity in sequential analyses while monitoring unidimensionality and sensitivity to detect levels of fatigue.

Results

The item reduction process terminated with a 5-item version (items 1, 4, 5, 11, and 12 from the original 13-item version). Analyses confirmed that both the original and short-form versions of the Lee Fatigue Scale demonstrated evidence of internal scale validity, unidimensionality, and sensitivity to at least three levels of fatigue (low, moderate, and high severity). Differential test functioning indicated that the original and short-form versions yielded similar ratings for 95 % of respondents.

Conclusion

A 5-item version of the Lee Fatigue Scale has satisfactory measurement properties and met criteria related to unidimensionality and ability to separate levels of fatigue. This version may be useful in studies measuring fatigue repeatedly over relatively short intervals.
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Metadata
Title
Development of a short version of the Lee Visual Analogue Fatigue Scale in a sample of women with HIV/AIDS: a Rasch analysis application
Authors
Anners Lerdal
Anders Kottorp
Caryl L. Gay
Kathryn A. Lee
Publication date
01-08-2013
Publisher
Springer Netherlands
Published in
Quality of Life Research / Issue 6/2013
Print ISSN: 0962-9343
Electronic ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-012-0279-3

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