Structural validity and internal consistency of an ecological observation‐based assessment, the Activities of Daily Living Profile
| Autor: | Carolina Bottari, Julie Lamoureux, Élisabeth Dutil, Claudine Auger |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Occupational therapy 030506 rehabilitation medicine.medical_specialty Activities of daily living Adolescent Psychometrics Applied psychology Observation Patient Care Planning Task (project management) Young Adult 03 medical and health sciences 0302 clinical medicine Occupational Therapy Activities of Daily Living Brain Injuries Traumatic medicine Humans Set (psychology) Trauma Severity Indices Reproducibility of Results Cognition Exploratory factor analysis Independence (mathematical logic) Female 0305 other medical science Psychology 030217 neurology & neurosurgery |
| Zdroj: | Australian Occupational Therapy Journal. 67:407-416 |
| ISSN: | 1440-1630 0045-0766 |
| Popis: | INTRODUCTION Direct observation of everyday task performance is considered the most accurate measure of independence for individuals with executive function impairments. However, few observation-based measures have been shown to have sound psychometric qualities and be clinically applicable. The objective of this study was to investigate the Activities of Daily Living (ADL) Profile's structural validity using exploratory factor analyses and internal consistency in order to identify the minimum set of tasks required to achieve reliable scores in each of three ADL environments (personal, home and community). METHODS Ninety-one persons with a severe traumatic brain injury aged 16-40 years (convenience sample) were recruited from a university affiliated level 1 trauma hospital. The 17 observation-based tasks of the ADL Profile were administered by one of five occupational therapists, either in the hospital or in the subjects' home and community environments. This measure of independence considers goal formulation, planning, carrying out and verifying goal attainment. RESULTS Exploratory factor analysis indicated the unidimensionality of the 17 tasks of the ADL Profile. A single factor explained more than 80% of the common variation, which in this case is the concept of independence. Internal consistency of task scores is very high (0.955), suggesting redundancy of the tasks. Approaches used to reduce the number of items, and to optimise the clinical applicability of the tool, showed that a minimum of two tasks per each of three environments (personal, home, community) is required to obtain reliable results that respect the tool's internal structure. Each assessment should contain both simple and familiar and more novel and complex tasks. CONCLUSIONS Findings show that the ADL Profile is a valid and clinically applicable observation-based measure of independence that considers four important task-related components: goal formulation, planning, carrying out and verifying goal attainment. |
| Databáze: | OpenAIRE |
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