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Titre : | Rasch Analysis of the Assessment of Quality of Activities (A-QOA), an Observational Tool for Clients With Dementia (2021) |
Auteurs : | Masahiro Ogawa ; Haruna Shirai ; Seiji Nishida ; Hitoshi Tanimukai |
Type de document : | Article |
Dans : | American journal of occupational therapy (Vol. 75, n° 1, January/February 2021) |
Article en page(s) : | p. 1-9 |
Note générale : | doi:10.5014/ajot.2021.039917 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Démence ; Etudes de validation ; Exercice physique ; Psychométrie ; Qualité de vie |
Mots-clés: | Modèle de Rasch |
Résumé : |
Importance: The Assessment of Quality of Activities (A-QOA) is an observation-based tool for assessing the strength of engagement in an activity by the person performing it in a natural context. By quantifying the quality of engagement, the A-QOA can help occupational therapy practitioners be better able to select meaningful activities and more clearly understand the effectiveness of various choices.
Objective: To examine use of the A-QOA as a valid unidimensional scale and to clarify preliminary results on its internal scale validity and item reliability using the Rasch model. Participants: One hundred thirty-one participants with dementia performing 262 activities. Outcomes and Measures: We used the Rasch model to clarify the psychometric properties of A-QOA's measurement quality. Results: Rasch analysis revealed that 21 of the 25 items reached an acceptable level of fit, and 4 did not. After eliminating the 4 misfitting items, the resulting A-QOA was determined to have both acceptable internal scale validity and item separation reliability, which are fundamental psychometric properties of a clinical observational instrument. Conclusions and Relevance: The A-QOA can be used to quantitatively assess the strength of engagement in an activity by the person performing it by using the observational method. What This Article Adds: In clinical settings, the A-QOA can be used both to select activities for clients with dementia and to quantitatively show the effects of occupational therapy interventions. |
Disponible en ligne : | Oui |
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