This exploratory study considered the perceptions of parents and teachers regarding behaviors exhibited by gifted students who may have attention deficit hyperactivity disorder (ADHD) by examining their responses to the Conners 3 behavior rating scale. Statistical analysis revealed average scores in the ratings of parents and teachers in the areas of inattention, hyperactivity/impulsivity, executive functioning, and learning problems. Parent and teacher ratings of these students were not significantly correlated nor were there significant differences between parents and teachers on ratings of students. The need for further examination of the psychometric properties and appropriate use of the Conners 3 in diagnosis of twice-exceptional students, the need for normative data on gifted populations for the Conners 3, and a greater understanding of the differential display of ADHD in the gifted population were suggested. (Contains 3 tables.)