He served as President of the National Association for Gifted Children 2007-2009 and at the Montana Association of Gifted and Talented Education (AGATE Montana), and Chair of the Special Interest Group of Research on Giftedness, Creativity and Talent of the American Educational Research Association. He is co-editor of Gifted Child Quarterly. He writes the column of technology at the Gifted Child Today. He is coauthor of the renowned textbook Education of the Gifted and Talented, and the book: The Underachieving Gifted Child: Recognizing, Understanding, & Reversing Underachievement.