William R. Stixrud, Ph.D. is a clinical neuropsychologist specializing in the evaluation of children, teens, and young adults. He has been in private practice since 1985 and is currently director of William R. Stixrud, Ph.D., and Associates, a group of 15 doctoral-level clinical psychologists and neuropsychologists. Dr. Stixrud was trained at the University of Minnesota, Boston’s Children’s Hospital (Harvard Medical School), and Tufts New England Medical Center. He has worked as a staff neuropsychologist at Children’s National Medical Center and the Georgetown University School of Medicine.

He is a popular lecturer on topics related to neuropsychological assessment, learning and executive disorders, brain development, brain-based learning, motivation, and the effects of stress and sleep deprivation on the brain. The author of Plain Talk About Early Education and Development.  He has also bylined numerous book chapters and articles on the subjects of epilepsy, adolescent brain development, self-esteem, homework, and the effects of Transcendental Meditation on students with ADHD. Dr. Stixrud is often quoted in publications including the New York Times, Washington Post, Washingtonian,  Wall Street Journal, Business Week, Barron’s and Vogue, and provides an archive of video discussions on his website.




Ned Johnson is author, speaker, teen success coach and founder of PrepMatters, Inc., a leading educational company providing tutoring, educational planning, and standardized test preparation.  He is a sought-after speaker and teen coach on best practices of study skills, sleep deprivation, parent-teen dynamics and test anxiety, and his work has been featured in publications such as US News & World Report, NPR, TIME Magazine, The Washington Post, The Wall Street Journal, USA Today and Newsweek.

A professional “tutor-geek” since 1993, Mr. Johnson has logged upwards of 30,000 hours working with students one-on-one and is considered a valued resource in the field of test preparation, anxiety management and student performance. Mr. Johnson’s interpersonal coaching skills help him to manage kids’ anxiety while simultaneously motivating and empowering them to reach their full potential. 

In 2007, Ned co-authored the book "Conquering the SAT: How Parents Can Help Students Overcome the Pressure and Succeed,” which centers on the outsized role anxiety plays in standardized testing.