What is the 30% rule in ADHD executive function? 

The ADHD 30% rule is a concept that suggests children and adults with ADHD may experience a developmental delay in executive function skills. This rule proposes that individuals with ADHD tend to develop executive functions at about 30% later than their peers without ADHD. This delay impacts key skills such as planning, organisation, time management, and impulse control. 

ADHD executive delay is a significant aspect of the ADHD experience, with many individuals showing a developmental lag in their ability to manage complex tasks. The developmental lag ADHD causes children to struggle with academic and social expectations that require mature executive functions, such as completing assignments on time or controlling emotional impulses. 

How It Helps 

Executive Function Age Gap 

The executive function age gap can be difficult for parents, teachers, and individuals with ADHD to recognise, but understanding this concept helps in setting realistic expectations. For example, a 12-year-old with ADHD might exhibit executive functions equivalent to a 9-year-old, making certain responsibilities more challenging. This understanding helps guide interventions and support strategies tailored to their developmental needs. 

The ADHD 30% rule reminds us that executive function deficits in ADHD are not a reflection of a lack of effort, but rather a developmental delay. By acknowledging this gap, individuals can receive the necessary support and interventions to help them build executive function skills at their own pace. 

Visit providers like ADHD Certify for personal consultations and expert advice tailored to your needs.    

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Executive Function Deficits.