Exploration of Treatment Response in Parent Training for Children with Autism Spectrum Disorder and Moderate Food Selectivity.

Lindsey’s team asked: which families get the most out of the MEAL Plan parent class? They enrolled 32 autistic kids, who ate fewer than 20 foods. Each family got six weekly group lessons at a clinic. Parents learned to sit the child for 15 minutes, praise bites, and ignore protests. No extra home visits were given.

Before and after, staff counted foods the child swallowed and how long the child stayed seated. Moms also filled out a short survey about their own schooling and the child’s talking level.

Only 15 of the the families (47 %) saw real gains. Kids in those homes added an average of 8 new foods and sat the full 15 minutes without crying. The other the families looked the same as when they started.

Two things predicted winning: mom had finished college and the child could ask for things with words or pictures. When both were true, success jumped to 78 %. If neither was true, it fell to 20 %.

The 47 % response rate feels low, but it lines up with older work. Richman et al. (2001) and Swaim et al. (2001) showed parents can run escape extinction at home, yet they hand-picked motivated families. Lindsey widens the door and shows the same tool works only half the time when you let everyone in.

Chawner et al. (2019) reviewed 36 feeding studies and found most parent models work, but they warned: “parent factors matter.” Lindsey gives the first hard numbers behind that warning.

Scotchie et al. (2023) took a different path. Instead of asking who will win, they asked what bite size or texture cuts expulsion. Their quick multielement probe could be added to Lindsey’s intake. Check mom’s education, child’s words, AND run a five-minute bite test before the first class.

If mom did not finish college or the child has no request skills, don’t send them to a group MEAL Plan. Offer one-to-one coaching first, or add a pre-class request-training package. You will raise your 47 % hit rate and waste fewer parent hours.