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Published on: August 16, 2024
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
Background:
Occupational therapists are frequently asked to document the interplay between individuals' neuropsychological deficits and the requirements of their daily lives.
Purpose:
The present study was designed to develop and validate a measure of independence in everyday functioning that considers recent advances in research regarding the ecological assessment of executive functions.
Method:
Experts (n=8) judged the IADL Profile's content validity and the tool was pilot tested with the target population (n=8). To document the tool's reliability, 30 patients aged 16 to 65 with moderate or severe TBI were recruited. A trained examiner administered the IADL Profile, and three trained judges rated video recordings on two occasions.
Results:
An eight-task (29-item) test was developed. Comparing ratings of four raters, 95 percent of kappa coefficients indicated moderate to almost perfect agreement, and 94% showed almost perfect intrarater agreement.
Implications:
The IADL Profile provides occupational therapists with a set of measures of IADL independence with strong preliminary evidence of reliability.
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