She has been writing about and conducting workshops on various aspects of the MBTI nationally and internationally for many years and is actively involved in research, theory, and applications of the instrument. She is a past president of the Association for Psychological Type (APT), former Director of Training for the APT MBTI Training Program, and a member of the Board of Directors of the MBTI Trust, Inc. Dr. Quenk is the author or coauthor of many MBTI computer reports, guides, and other MBTI support materials.