行为结局（Performance Outcome, PerfO）
行为结局（Performance Outcome, PerfO）评估：A type of clinical outcome assessment. A measurement based on standardized task(s) actively undertaken by a patient according to a set of instructions.1)
A PerfO assessment may be administered by an appropriately trained individual or completed by the patient independently.
PerfO assessments include:
Measures of gait speed (e.g., timed 25 foot walk test using a stopwatch or using sensors on ankles)
Measures of memory (e.g., word recall test)