Embedded evaluation of preferences sampled from person-centered plans for people with profound multiple disabilities.

The team worked with three adults who had profound multiple disabilities. Each adult had a person-centered plan that listed their favorite items.

Instead of running a long preference test, staff slipped 30-second trials into daily routines. They offered two plan-listed items and recorded which one the person reached for or looked at longer.

They also ran a standard MSWO assessment later. The goal was to see if the quick embedded trials matched the full test.

The embedded trials picked the same top items as the MSWO for every participant. Agreement averaged 92 percent.

Surprise: the plans were often wrong. Two adults rarely chose their plan-listed "favorite" snack. One plan said a client loved a certain CD, but he never picked it in 20 trials.

Kang et al. (2013) reviewed 14 studies and found brief formats can be just as valid as long ones. Our 2000 paper is one of the brief formats they included.

Curiel et al. (2018) moved brief testing online. Their web MSWO for videos gave similar fast results, but for kids with autism instead of adults with profound ID.

Kodak et al. (2009) showed that different formats sometimes disagree. They compared MSW against free-operant and got different winners. Our study shows embedded trials agree with MSWO, not with the written plan.

You can skip the separate preference lab. Slip 30-second choice trials into meals, hygiene, or breaks. Record reaches, looks, or smiles. After ten trials you will know the real favorite. Update the behavior plan and use that item as the reinforcer right away. No extra staff time, no table setup, and no need to trust outdated paperwork.