As a professor, Diane E. Papalia has taught thousands of undergraduates at the University of Wisconsin. She received her bachelor's degree, majoring in psychology, from Vassar College and both her master's degree in child development and family relations and her Ph.D. in life-span developmental psychology from West Virginia University. She has published numerous articles in such professional journals as Human Development, International Journal of Aging and Human Development, Sex Roles, Journal of Experimenal Child Psychology and Journal of Gerontology. Most of these papers have dealt with her major research focus, cognitive development from childhood though old age. She is especially interested in intellectual development and factors that contribute to the maintenance of intellectual functioning. She is a Fellow in the Gerontology Society of America.
Sally Wendkos Olds is an award-winning professional writer who has written more than 200 articles in leading magazines and is the author or coauthor of six books addressed to general readers in addition to the three textbooks she has coauthored with Dr. Papalia. Her books The Complete Book of Breastfeeding and The Working Parents' Survival Guide have both been issued in completely updated and expanded editions. She is also the author of The Eternal Garden: Seasons of Our Sexuality and the coauthor of Raising a Hyperactive Child (winner of the Family Service Association of America National Media Award) and Helping Your Child Find Values to Live By. She received her bachelor's degree from the University of Pennsylvania, where she majored in English Literature and minored in psychology. She was elected to Phi Beta Kappa and was graduated summa cum laude.
Ruth Duskin Feldman is an award winning writer. She is the author or coauthor of four books addressed to general readers, including Whatever Happened to the Quiz Kids? Perils and Profits of Growing Up Gifted. She was coauthor of the Fourth Edition of Diane E Papalia and Sally Wendkos Olds's Human Development and is coauthor, wih Diane Papalia and Cameron J. Camp, of Adult Development and Aging. A former teacher, she has developed educational materials for all levels from elementary school through college. She has written numerous newspaper and national magazines on education and other topics and has lectured extensively throughout the United States. She prepared the test banks to accompany the Fifth Edition of Human Development and the Sixth Edition of another Papalia/Olds text, A Child's World, as well as the Study Guide with Readings to accompany the Fifth, Sixth, and Seventh Editions of A Child's World. She received her bachelor's degree from Northwestern University, where she was graduated with highest distinction and was elected to Phi Beta Kappa.