The Reliability and Validity of the Complex Task Performance Assessment: A Performance-Based Assessment of Executive Function

摘要

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 0.991. The ICCs for all of the sub scores of the CTPA were also high (0.889-0.977). The CTPA total score was significantly correlated to Condition 4 of the DKEFS Color-Word Interference Test (>ρ = −0.425), and the Wechsler Test of Adult Reading (>ρ = −0.493). Finally, there were significant differences between control subjects and individuals with mild stroke on the total score of the CTPA (p = 0.007) 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.