Defining and applying the concept of quality of life.

Branford (1997) wrote a think-piece, not an experiment. The author asked, “What should quality of life mean for people with disabilities?”

The paper answers with six must-check boxes: emotional well-being, physical health, personal control, social ties, money and housing, and rights.

The model says you must mix hard facts (like having a job) with the person’s own feelings (like liking that job).

There are no numbers. The product is a one-page map that teams can use to pick or build tools.

The map tells you to weigh each domain by what the client values, not just what staff think matters.

Verdugo et al. (2024) look back and call the 1997 paper the “second era” that turned a fuzzy idea into a test-ready model. The six boxes are still standing 27 years later.

Adams et al. (2021) give you a six-step lab recipe that starts with the same six boxes. They show how to turn the map into real data in IDD research.

Brown et al. (2013) keep the boxes but add a twist: they swap “standard indicators” for “personal capabilities.” Same spirit, sharper lens.

Petry et al. (2007) prove the map works even for people with profound multiple disabilities. Experts kept 91 % of the items, showing the domains stretch without breaking.

You now have a quick checklist that covers what funders, families, and clients actually care about. Use it to pick tools, write goals, or defend why a “soft” area like happiness belongs in the behavior plan. When a measure skips one of the six boxes, you can spot the gap and fill it before the annual review.