The validity and reliability of the impact on participation and autonomy questionnaire
Kersten, P., Sibley, A., Ward, C.D., White, B. and George, S.L. (2005) The validity and reliability of the impact on participation and autonomy questionnaire. Clinical Rehabilitation, 19, 575-576. (doi:10.1191/0269215505cr892xx).
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Description/Abstract
Background: This study evaluated the validity and
reliability of a new measure: Impact on Participation
and Autonomy Questionnaire, English Version (IPA-E).
The IPA has shown to load onto five factors.
Method: Two hundred and thirteen people with multiple
sclerosis, rheumatoid arthrites spinal cord injury
and GP attendees were recruited and stratified by level
of disability (median age 54). Inclusion criteria: English
as first language, aged 18-75, score> 6 on Mental
Status Questionnaire. A sample size calculation was
conducted. Sixty-six Participants completed the IPA-E
on a second occasion. Other measures: SF-36, London
Handicap Scale, three domains of the Functional
Limitations Profile (household management, social
integration, emotion).
Results: Confirmatory Factor Analysis confirmed the
construct validity of the IPA-E normal fit index (NFI) =
0.98, (comparative fit index (CFI) = 0.99), indicating
a good fit to the model. Convergent and discriminant
validity was confirmed by the predicted associations,
or lack of, with the exception of a poor
association between the 'social life/relationships' IPAE
subscale and 'FLP-emotion'. Internal reliability
of the IPA was confirmed (Cronbach alphas > 0.8
and item-total correlations for all subscales > 0.5).
Test-retest reliability was confirmed for all but one
item (weighted kappas > 0.6) and subscales (ICCs >
0.90).
Discussion: Further research is required to examine
the responsiveness of the IPA to change over time, its
clinical utility and suitability for use with people from
ethnic minorities and with older people.
Conclusion. The IPA is a valid, reliable and acceptable
measure of participation and autonomy in people with
a range of conditions and can make a unique and
fundamental contribution to outcome assessment.
| Item Type: | Article |
|---|---|
| ISSNs: | 0269-2155 (print) 1477-0873 (electronic) |
| Subjects: | R Medicine > RA Public aspects of medicine R Medicine > RT Nursing |
| Divisions: | University Structure - Pre August 2011 > School of Health Sciences University Structure - Pre August 2011 > Superseded (SOHPRS) |
| Item ID: | 59025 |
| Date Deposited: | 22 Aug 2008 |
| Last Modified: | 15 Oct 2012 15:36 |
| Contributors: | Kersten, P. (Author) Sibley, A. (Author) Ward, C.D. (Author) White, B. (Author) George, S.L. (Author) |
| Date: | 2005 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/59025 |
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