1. Vermont Association for the Blind and the Vermont State Department of the Blind (at the time of the study, Dr. Jackson was a psychologist at the San Diego Center for the Blind and Visually Impaired).
2. Department of Psychology and Family Studies, United States International University, 10455 Pomerado Road, San Diego, CA 92131, and a consultant to the San Diego Center for the Blind and Visually Impaired.