The reliability and validity of the Complex Task Performance Assessment: A performance-based assessment of executive function.
The objective of this study was to evaluate the inter-rater reliability, test-retest reliability, concurrent validity, and discriminant validity of the Complex Task Performance Assessment (CTPA): an ecologically valid performance-based assessment of executive function. Community control participants (n = 20) and individuals with mild stroke (n = 14) participated in this study. All participants completed the CTPA and a battery of cognitive assessments at initial testing. The control participants completed the CTPA at two different times one week apart. The intra-class correlation coefficient (ICC) for inter-rater reliability for the total score on the CTPA was .991. The ICCs for all of the sub-scores of the CTPA were also high (.889-.977). The CTPA total score was significantly correlated to Condition 4 of the DKEFS Color-Word Interference Test (p = -.425), and the Wechsler Test of Adult Reading (p  = -.493). Finally, there were significant differences between control subjects and individuals with mild stroke on the total score of the CTPA (p = .007) and all sub-scores except interpretation failures and total items incorrect. These results are also consistent with other current executive function performance-based assessments and indicate that the CTPA is a reliable and valid performance-based measure of executive function.
a Program in Occupational Therapy , Washington University in St. Louis, School of Medicine , St. Louis , USA.|b Department of Neurology , Washington University in St. Louis, School of Medicine , St. Louis , USA.
Timothy J
TJ
Wolf
a Program in Occupational Therapy , Washington University in St. Louis, School of Medicine , St. Louis , USA.
Abigail
A
Dahl
a Program in Occupational Therapy , Washington University in St. Louis, School of Medicine , St. Louis , USA.
Colleen
C
Auen
a Program in Occupational Therapy , Washington University in St. Louis, School of Medicine , St. Louis , USA.
Meghan
M
Doherty
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D003430:Cross-Sectional Studies; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D061212:Memory, Episodic; D008875:Middle Aged; D009483:Neuropsychological Tests; D011594:Psychometrics; D011932:Reading; D015203:Reproducibility of Results; D020521:Stroke / Q000150:complications*; D000071939:Stroke Rehabilitation; D013647:Task Performance and Analysis; D013689:Telephone; D055815:Young Adult
Cognition; Ecological validity; Executive function; Occupational therapy; Rehabilitation