This article is a response to a study "Gifted or ADHD? The Possibilities of Misdiagnosis," by D. Niall Hartnett, Jason Nelson, and Anne Rinn. A critique of the authors' claim about misdiagnosis of gifted children with ADHD, as well as their experiment and conclusions, is presented. The paper disputes an idea, prevalent in the gifted education field, that gifted children are misdiagnosed with ADHD, and points out that there is no reliable evidence of such a trend. The concept of overexcitability in its original meaning and clinical manifestations, as described by Kazimierz Dabrowski, provides a different perspective on ADHD and giftedness than that given by Hartnett et al., and common in the gifted field.