Some days it can feel like your child with ADHD has a vendetta against you. You tell them to go out…they go in. You say stop…they go. You tell them to start their homework, and they look at you and turn on the television. When our kids show defiance and go against our warnings or directions, it can feel downright infuriating. And it can make you question whether you are even a good parent.

First, let’s normalize this: you are not alone! Defiance is one of the most common challenges faced by parents and teachers of children with ADHD. As a psychologist, whenever a parent tells me that their child is defiant, I always try to dig a little deeper to find out why?

The truth is that defiance is often a symptom of a larger problem for the child or with their environment.

Today, I am sharing four possible reasons for defiance in children with ADHD.

1) Executive functioning differences

I remember testing a young girl and asking her to complete some math facts quickly for 1 minute. Af...