Randomized Controlled Trial

Parents Learned to Read Aloud "Properly." Their Children's Language Did Not Change

A preregistered, double-blind trial with 150 children gave every group the same 20 books and the same 5-times-a-week schedule — and only some parents the technique. Parent behavior changed dramatically. Child language did not.

Seven Weeks of Changing "How to Talk" — And Child Problem Behaviors Went Down

A randomized controlled trial across 15 elementary schools in Montreal evaluated a 7-week parent training program grounded in self-determination theory. Externalizing problems dropped significantly in the treatment group and the effect persisted at the 6-month follow-up.