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Psychometric properties of a revised version of the Assisting Hand Assessment (Kids-AHA 5.0)
Örebro University, School of Health Sciences. (Research Enabling an Active Life)ORCID iD: 0000-0001-5418-3154
Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden.
2016 (English)In: Developmental Medicine & Child Neurology, ISSN 0012-1622, E-ISSN 1469-8749, Vol. 58, no 6, p. 618-624Article in journal (Refereed) Published
Abstract [en]

Aim: The aim of this study was to scrutinize the Assisting Hand Assessment (AHA) version 4.4 for possible improvements and to evaluate the psychometric properties regarding internal scale validity and aspects of reliability of a revised version of the AHA.

Method: In collaboration with experts, scoring criteria were changed for four items, and one fully new item was constructed. Twenty-two original, one new, and four revised items were scored for 164 assessments of children with unilateral cerebral palsy aged 18 months to 12 years. Rasch measurement analysis was used to evaluate internal scale validity by exploring rating-scale functioning, item and person goodness-of-fit, and principal component analysis. Targeting and scale reliability were also evaluated.

Results: After removal of misfitting items, a 20-item scale showed satisfactory goodnessof- fit. Unidimensionality was confirmed by principal component analysis. The rating scale functioned well for the 20 items, and the item difficulty was well suited to the ability level of the sample. The person reliability coefficient was 0.98, indicating high separation ability of the scale. A conversion table of AHA scores between the previous version (4.4) and the new version (5.0) was constructed.

Interpretation: The new, 20-item version of the Kids-AHA (version 5.0), demonstrated excellent internal scale validity, suggesting improved responsiveness to changes and shortened scoring time. For comparison of scores from version 4.4 to 5.0, a transformation table is presented.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2016. Vol. 58, no 6, p. 618-624
Keywords [en]
Assessment, Hand function, cerebral palsy
National Category
Neurology Pediatrics
Research subject
Neurology; Pediatrics
Identifiers
URN: urn:nbn:se:oru:diva-49459DOI: 10.1111/dmcn.12939ISI: 000382852900021PubMedID: 26507383Scopus ID: 2-s2.0-84949294538OAI: oai:DiVA.org:oru-49459DiVA, id: diva2:914436
Note

Funding Agencies:

Stiftelsen Sunnerdahls Handikappfond

Stiftelsen Promobilia

Strategic Research Programme in Care Sciences at Karolinska Institutet

Available from: 2016-03-24 Created: 2016-03-24 Last updated: 2017-11-30Bibliographically approved

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Holmefur, Marie

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