Inter-Rater Reliability of the Pizzi Health and Wellness Assessment (PHWA)

Area of Science:

• Occupational Therapy
• Health and Wellness Assessments
• Psychometrics

Background:

• The Pizzi Health and Wellness Assessment (PHWA) is utilized in occupational therapy.
• Assessing client participation across social, physical, family, occupational, mental/emotional, and spiritual domains is crucial.
• Understanding inter-rater reliability is key for assessment validity.

Purpose of the Study:

• To determine the inter-rater reliability of the Pizzi Health and Wellness Assessment (PHWA).
• To compare score consistency between clients with disabilities and their caregivers.
• To evaluate reliability across various participation domains and specific subsections of the PHWA.

Main Methods:

• A retrospective inter-rater correlational design was employed.
• A convenience sample of 19 clients with disabilities and 19 caregivers participated.
• Inter-rater reliability was calculated using Intraclass Correlation Coefficient (ICC), Pearson, and Spearman rho correlations.

Main Results:

• The PHWA demonstrated reliable scores between clients and caregivers (r = .636, p < .001; rho = .642, p < .001).
• The 'current level of participation' subsection showed acceptable reliability (r_ICC = .513, p < .001; r = .521, p < .001).
• The 'wishing to improve participation' subsection also demonstrated acceptable reliability (r_ICC = .689, p < .001; r = .725, p < .001).

Conclusions:

• The Pizzi Health and Wellness Assessment (PHWA) is a reliable tool for occupational therapy.
• The assessment demonstrates strong inter-rater reliability between clients and caregivers.
• The PHWA is a clinically relevant instrument for evaluating health and wellness.