The Occupational Self Assessment (OSA)
What It Measures
The Occupational Self Assessment (OSA) asks people to reflect on their own everyday activities including things like managing money, taking care of themselves, working, and socializing — and rate two things for each: how well they feel they do it, and how much it matters to them. The gap between what someone values and how capable they feel doing it often points to where therapy can help most.
Grounded in the Model of Human Occupation (MOHO), the 21-item OSA covers skills/performance, habituation, and volition, plus a separate section on how supportive the person's environment feels. Occupational therapists use it with adults and older adults in community-based and mental health settings, often with conditions like chronic pain, depression, or multiple sclerosis, to guide collaborative goal-setting; a shorter 12-item version (OSA-SF) is also available when a briefer tool is needed.
Further Reading
Additional Notes
The OSA is a licensed assessment product sold through the MOHO Web store. Cost includes the manual and rating forms.
