Validating a test of functional performance with psychiatric patients

Area of Science:

• Neuroscience
• Psychiatry
• Psychometrics

Background:

• Functional performance is crucial for daily living and can be impacted by cognitive abilities.
• The Bay Area Functional Performance Evaluation (BaFPE) is a recently developed tool to assess these abilities.
• Understanding the relationship between intelligence and functional performance is key for clinical assessment.

Purpose of the Study:

• To validate the Bay Area Functional Performance Evaluation (BaFPE) using intelligence measures.
• To identify predictors of functional performance in psychiatric inpatients.
• To explore the influence of cognitive abilities on functional outcomes.

Main Methods:

• Administered three Wechsler Adult Intelligence Scale (WAIS) subscales (picture completion, block design, digit symbol) to 60 psychiatric inpatients.
• Assessed functional abilities using the BaFPE task-oriented assessment (TOA).
• Analyzed correlations between WAIS subscales and BaFPE TOA scores, and identified predictor variables.

Main Results:

• Significant positive correlations were found between WAIS subscales and the BaFPE TOA, supporting the BaFPE's validity.
• Age and history of electroconvulsive treatments were negatively associated with functional performance (BaFPE TOA).
• Higher education level was positively associated with functional performance (BaFPE TOA); diagnosis and medication were not significant predictors.

Conclusions:

• The study provides evidence for the validity of the BaFPE in assessing functional abilities in psychiatric populations.
• Cognitive abilities, particularly those measured by WAIS subscales, are significant correlates of functional performance.
• Age, education, and electroconvulsive treatment history are important factors influencing functional outcomes in this patient group.