I’ll admit that I have yet to experience the youth sports frenzy that so many of my mom friends (and the internet) complain about. My 6-year-old plays in a local rec league where—how shall I put this?

Child psychologist Reem Raouda has studied over 200 parent-child relationships — and is a mother herself. Raouda says she has the solution to children who refuse to follow orders, helping to build ...