About Wendy Masi DR. WENDY MASI is a developmental psychologist specializing in early childhood. She is dean of the Mailman Segal Institute for Early Childhood Studies at Nova Southeastern University. Books by Wendy Masi 365 Activities You and Your Child Will Love Play Ideas to Thrill Your Thriving Preschooler by (author) Dr Roni Cohen Leiderman, Roni Cohen Leiderman Dr. & Wendy Masi Dr. with Wendy Masi