This research intends to provide empirical support for the possibility of misdiagnosis of giftedness and Attention Deficit Hyperactivity Disorder (ADHD). Forty-four graduate students enrolled in a school counseling program acted as participants. Participants were given one of two forms, both of which provided a hypothetical case study of a young boy with characteristics of both giftedness and ADHD. Participants were then asked for a diagnosis. A chi-square analysis suggests a statistically significant difference whereby the suggestion of the diagnosis of giftedness can lead participants away from a diagnosis of ADHD. Implications for educators and graduate level counseling and psychology programs are provided.