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The reliability and validity of the Complex Task Performance Assessment: A performance-based assessment of executive
Timothy J Wolf1,2, Abigail Dahl1, Colleen Auen1
1a Program in Occupational Therapy , Washington University in St. Louis, School of Medicine , St. Louis , USA.
Neuropsychological Rehabilitation
|May 6, 2015
Summary
The Complex Task Performance Assessment (CTPA) demonstrates high reliability and validity for measuring executive function in adults. This performance-based tool accurately distinguishes between healthy individuals and those with mild stroke.
Area of Science:
- Neuroscience
- Psychology
- Rehabilitation Science
Background:
- Executive function is crucial for daily activities.
- Performance-based assessments offer ecological validity.
- The Complex Task Performance Assessment (CTPA) is a novel tool for evaluating executive function.
Purpose of the Study:
- To assess the inter-rater reliability, test-retest reliability, concurrent validity, and discriminant validity of the CTPA.
- To determine if the CTPA can differentiate between healthy controls and individuals with mild stroke.
Main Methods:
- The CTPA was administered to 20 community controls and 14 individuals with mild stroke.
- Test-retest reliability was assessed in controls over one week.
- Concurrent validity was examined against the DKEFS Color-Word Interference Test and Wechsler Test of Adult Reading.
Main Results:
- The CTPA showed excellent inter-rater reliability (ICC=.991) and test-retest reliability (ICCs .889-.977).
- Significant correlations were found between CTPA scores and established cognitive tests.
- The CTPA effectively discriminated between control participants and individuals with mild stroke (p=.007).
Conclusions:
- The CTPA is a reliable and valid performance-based measure of executive function.
- Its ecological validity makes it suitable for clinical and research settings.
- The CTPA is a promising tool for assessing executive function deficits, particularly after stroke.
