Opportunities for communication in classrooms serving children with developmental disabilities.

Researchers watched six special-ed preschool rooms for kids with developmental delays.

They coded every 15-second interval to see how often adults gave kids a chance to talk, sign, or gesture.

The team counted any moment where a child could name, ask, or answer something.

Less than 14% of the school day held any communication chance at all.

Most of those rare chances were simple naming or requesting.

Kids who already had stronger skills got more opportunities than kids with fewer skills.

Eto et al. (1992) saw the same scarcity in UK hospitals and hostels: adults with learning disabilities faced very short, infrequent chats.

Park et al. (2025) later surveyed 3,000 South Koreans and still found most people with developmental disabilities stuck in passive or excluded groups—proof the problem lasts beyond US preschools.

Prain et al. (2012) warn that when behaviors are this rare, percent-agreement can fake high reliability; always check Cohen’s κ before trusting low frequency counts like the 14% figure.

If classrooms only give kids 14% of chances to talk, we are leaving 86% of the day silent.

Build in naming, asking, and answering moments during transitions, snack, and play.

Use peer models and visual scripts so every child, not just the skilled ones, gets called on.