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The IADL profile: development, content validity, intra- and interrater agreement
Carolina L Bottari1, Clément Dassa, Constant M Rainville
1Department of Neurology and Neurosurgery, Cognitive Neurosciences Unit, McGill University, Montreal, Quebec, Canada. carolina.bottari@umontreal.ca
Summary
Occupational therapists can now use the IADL Profile to measure independence in daily activities. This new tool shows strong reliability for assessing executive functions in individuals with traumatic brain injury (TBI).
Area of Science:
- Neuroscience
- Occupational Therapy
- Rehabilitation Psychology
Background:
- Occupational therapists require tools to link neuropsychological deficits with daily functioning.
- Assessing executive functions in real-world settings is crucial for rehabilitation.
Purpose of the Study:
- To develop and validate a measure of independence in everyday functioning.
- Incorporate recent advances in ecological assessment of executive functions.
Main Methods:
- Content validity assessed by 8 experts; pilot tested on 8 individuals.
- Reliability tested on 30 patients (16-65 years) with moderate/severe TBI.
- IADL Profile administered by examiner; judges rated video recordings.
Main Results:
- An 8-task (29-item) test, the IADL Profile, was developed.
- Interrater reliability: 95% kappa coefficients showed moderate to almost perfect agreement.
- Intrarater reliability: 94% showed almost perfect agreement.
Conclusions:
- The IADL Profile offers occupational therapists reliable measures of IADL independence.
- Presents strong preliminary evidence of reliability for clinical use.
- A valuable tool for assessing functional outcomes post-TBI.
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