Final answer:
Oppositional Defiant Disorder (ODD) and Attention Deficit Hyperactivity Disorder (ADHD) frequently co-occur, with 30-70% of individuals with ADHD also having ODD.
Step-by-step explanation:
Comorbidity rates refer to the occurrence of two or more conditions in the same individual. In the case of Oppositional Defiant Disorder (ODD) and Attention Deficit Hyperactivity Disorder (ADHD), they frequently co-occur, meaning they often happen together in individuals. According to research, anywhere between 30-70% of individuals diagnosed with ADHD also have ODD. This high comorbidity rate suggests a strong association between the two disorders.