Are We Making the Correct Inferences Based on What We Are Measuring?
As physical therapist researchers and clinicians, we often direct our interventions toward improving activity-level outcomes on the International Classification of Functioning, Disability and Health (ICF) model. Activity is defined as the execution of a task or action by an individual. This is typically assessed using self-report measures of perceived performance/ability and clinic-based measures of capacity. The Stroke Impact Scale, the Activities-specific Balance Confidence Scale (ABC), and the Motor Activity Log (MAL) are examples of self-report measures of perceived performance. Clinic-based measures of capacity include outcome measures such as the 6-Minute Walk Test (6MWT) or 10-m Walk Test to determine gait speed (GS).
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George Fulk, PT, PhD, FAPTA; Editor-In-Chief