Objective: To conduct preliminary examination of therater and test-reliability of the Perceive, Recall, Planand Perform (PRPP) System of Task Analysis, an ecologicalmeasure designed to assess task-embedded informationprocessing capacity during occupational therapy assessmentof confused and agitated adults following traumatic braininjury.Methods: Occupational therapists observed and scoredclient performance using the PRPP System of Task Analysis.Correlational analysis and measures of agreement wereperformed to determine interrater and intrarater reliability.Test procedures were examined for reliability and internalconsistency.Results: Interrater and test reliability considered threefactors: therapists, clients and tasks. A moderate level ofinterrater reliability was achieved between trained therapists(intraclass correlation coefficient (ICC) = 0.60). Testprocedures were highly reliable (ICC = 0.88). Across twomeasurement occasions, therapists showed a tendency towardsharder rating on the second test occasion (d '4.5%; 95%confidence interval for d: '10.67% ' 3.17%).Conclusion: The findings of this study support the use ofcriterion-referenced tests in the area of occupationalperformance measurement. Occupational therapists achievedmoderate interrater reliability when measuring the performanceof adults with brain injury on various activitiesof daily living. Test procedures were found to be highlyreliable in measuring the occupational performance ofadults demonstrating confusion and agitation typical to thestage of post-traumatic amnesia following head injury.KEY WORDS agitation, assessment, brain injuries, occupationalperformance, reliability.
|Number of pages||8|
|Journal||Australian Occupational Therapy Journal|
|Publication status||Published - 2009|
Nott, M. T., Chapparo, C., & Heard, R. (2009). Reliability of the Perceive, Recall, Plan and Perform System of Task Analysis: a criterion referenced assessment. Australian Occupational Therapy Journal, 56(5), 307-314.