The effect of parent education program for preschool children with developmental disabilities: A randomized controlled trial.

Leung et al. (2016) ran a fair coin-flip trial in China. They split families of preschoolers with developmental delays into two groups. One group started the Happy Parenting program right away. The other group waited and got the program later.

Educational psychologists taught the program to parents. The course covered play skills, clear commands, and calm consequences. Researchers tracked child problem behavior, parent stress, and discipline tactics for both groups.

Kids whose parents took the course showed fewer tantrums, hits, and screams. Parents felt less stressed and stopped using harsh punishments. The wait-list families stayed the same until they got the course.

The program worked better than simply waiting. Parents liked the classes and finished most sessions.

Ağırkan et al. (2023) pooled many Turkish studies and reached the same happy news: group parent classes cut parent distress and boost well-being. Their meta-analysis includes programs like Happy Parenting, so the two papers agree.

Eugenia Gras et al. (2003) tested the older Signposts program and also saw calmer parents and kids. Happy Parenting repeats the win with a new Chinese sample, showing the idea travels across cultures.

Manohar et al. (2019) shortened parent coaching to only five home visits in India and still helped. Cynthia’s longer class got bigger gains, but both prove brief formats can work when time or money is tight.

You can hand Chinese families a ready-made parent course and expect real behavior change. The classes fit preschoolers with any developmental delay, not just autism. Use the Happy Parenting manual or borrow its pieces—play skills, labeled praise, calm consequences—and you will likely see fewer meltdowns and less parent burnout. If staff time is short, remember Harshini’s five-session win and start small; any dose beats no dose.