Volume 24, Number 1 (4-2014)                   J Holist Nurs Midwifery 2014, 24(1): 9-20 | Back to browse issues page


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Tagharrobi Z, Sharifi K, Sooky Z. Psychometric evaluation of Stanford health assessment questionnaire 8-item disability index (HAQ 8-item DI) in elderly people. J Holist Nurs Midwifery. 2014; 24 (1) :9-20
URL: http://hnmj.gums.ac.ir/article-1-84-en.html

Instructor School of Nursing and Midwifery, Kashan University of Medical Sciences , sooki812000@yahoo.com
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Psychometric evaluation of Stanford health assessment questionnaire 8-item disability index (HAQ 8-item DI) in elderly people

BY:Tagharrobi Z1, Sharifi KH1, Sooky Z*2

1) PhD student in nursing education, Instructor, School of Nursing and Midwifery, Kashan University of Medical Sciences, Kashan, Iran

2) PhD student in Reproductive Health, Instructor, School of Nursing and Midwifery, Kashan University of Medical Sciences, Kashan, Iran

 Received: 2012 /07/30

 Accept: 2013/08/11

Abstract

Introduction: Measuring level of disability in elderly in attention to their physical status requires an instrument practicable in elderly and easy to score.

Objective: Survey the reliability and validity of the HAQ 8-item DI in older people residing in Kashan Golabchi nursing home.

Methods: In this methodological study, samples were chosen by census method (n=100).  After translation of original copy, the inter-rater agreement between evaluators and internal consistency were assessed. For validity determination, concurrent validity, exploratory factor analysis and Known-groups were used. The data were analyzed using Pearson correlation coefficient, Intra-class correlation coefficient (ICC), Kappa, Equal - Length spearman-brown, Guttman, Alpha Cronbach coefficient, Kruskal-Wallis test and factor analysis via principal component analysis with varimax rotation.

Results: Inter-rater reliability coefficient for every item was good or excellent (Kappa>0.7). ICC in relation to overall instrument was 0.992. The questionnaire reliability coefficient (internal consistency) was 0.95-0.98. Item-total correlation confirmed its reliability too. Its concurrent validity with original Barthel index was confirmed (r=-0.92, p<0.0001). The known-groups approach revealed this tool as valid (p<0.0001). The factor analysis extracted one main factor with value more than one which could explain %87.15 of the total variance of elderly disability.

Conclusion: The Persian translation of HAQ 8-item DI for evaluation of disability in elderly people residing in Golabchi nursing home is valid and reliable.

 Keywords: Reproducibility of results, Psychometrics, Disability evaluation, Aged, Homes for the Aged

*corresponding Author: Zahra Sooky, Kashan , Kashan university of medical sciences

Email: sooki812000@yahoo.com

Type of Study: Research | Subject: Special
Received: 2012/07/31 | Accepted: 2013/08/11 | Published: 2014/03/2

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