Interrater Reliability of the Revised Cognitive Performance Test (CPT): Assessing Cognition in People With...

Area of Science:

• Occupational therapy
• Neuroscience
• Gerontology

Background:

• Standardized assessments require reliable scoring by administrators.
• Occupation-based assessments are crucial for evaluating functional capacity.
• Neurocognitive disorders in older adults necessitate accurate cognitive assessment tools.

Purpose of the Study:

• To measure the interrater reliability of the Cognitive Performance Test (CPT).
• To assess the consistency of CPT scoring across different levels of rater experience.
• To validate the CPT as a reliable tool for evaluating cognitive-functional capacity.

Main Methods:

• Video recordings of 10 patients undergoing the CPT were scored by two groups of raters: four experts and three novices.
• Interrater reliability was calculated using intraclass correlation coefficients (ICC) and Spearman's rho (ρ).
• Comparison of reliability scores between expert and novice raters was performed.

Main Results:

• Overall interrater reliability for the CPT was strong (ICC = .93).
• Expert raters achieved higher reliability (ICC = .97) compared to novice raters (ICC = .93).
• High Spearman's rho correlation coefficients (rs = .92-1.00) were observed among all raters.

Conclusions:

• The Cognitive Performance Test (CPT) is a reliable tool for assessing cognitive-functional capacity in older adults with neurocognitive disorders.
• Practitioners can trust the CPT's consistent and accurate results when administered according to standardized protocols.
• The CPT provides valuable, reliable information for healthcare teams, families, and patients.