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Published in: Health and Quality of Life Outcomes 1/2009

Open Access 01-12-2009 | Research

Turkish version of impact on family scale: a study of reliability and validity

Authors: Nilgun Bek, I Engin Simsek, Suat Erel, Yavuz Yakut, Fatma Uygur

Published in: Health and Quality of Life Outcomes | Issue 1/2009

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Abstract

Background

Although there is a considerably high prevalence of developmental disorders in Turkey there are not many assessment tools related to evaluating the impact of these children on their family. The aim of this study was to determine the validity and reliability of the Turkish version of the Impact on Family Scale (IPFAM), a health related quality of life measurement to be utilized in clinical trials, health care services, research and evaluation.

Methods

Caregivers of 85 children with developmental disabilities answered the questionnaire and 65 of them answered it twice with a one week interval. The reliability of the measurement was assessed by Cronbach's alpha coefficient, and with intraclass correlation coefficient (ICC) for test-retest reliability. Construct validity was assessed by calculating the correlation between total impact score of IPFAM, WeeFIM and the physiotherapists' evaluation via Visual Analogue Scale (VAS) to determine the child's disability.

Results

Test-retest reliability was found to be ICC = 0.953 for total impact, 0.843 for financial support, 0.940 for general impact, 0.871 for disruption of social relations and 0.787 for coping. Internal consistency was tested using Cronbach's alpha and was found to be 0.902 for total impact of IPFAM. For construct validity the correlation between total impact score of IPFAM and WeeFIM was r = -0,532 (p < 0.001) and the correlation between total impact score of IPFAM and the physiotherapist's evaluation was r = 0.519 (p < 0.001).

Conclusion

The Turkish version of IPFAM was found to be a reliable and valid instrument for assessing the impact of developmental disorders of the child on the family.
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Metadata
Title
Turkish version of impact on family scale: a study of reliability and validity
Authors
Nilgun Bek
I Engin Simsek
Suat Erel
Yavuz Yakut
Fatma Uygur
Publication date
01-12-2009
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2009
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/1477-7525-7-4

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