Carol K. Sigelman (Ph.D., George Peabody College for Teachers at Vanderbilt University) is associate vice president for research and graduate studies, and professor of psychology at The George Washington University. She also has taught at Texas Tech University, Eastern Kentucky University (where she won the Outstanding Teacher Award), and the University of Arizona. She taught courses in child, adolescent, adult, and life-span development for 25 years, and has published extensively on such topics as the communication skills of individuals with developmental disabilities, peer reactions to children and adolescents who are different, and children's developing understanding of diseases and… psychological disorders. Through a grant from the National Institute of Child Health and Human Development, she studied children's intuitive theories of AIDS, and developed and evaluated a curriculum to correct their misconceptions and teach them the basic facts of HIV infection. More recently, through a grant from the National Institute on Drug Abuse, she and her colleagues have conducted similar research on how well children of different ages understand the effects of alcohol and drugs on body, brain, and behavior.