Dr. Germán E. Posada's (Ph.D.) current research focuses on the behavioral and representational development of parent-child secure base relationships during childhood and the relations between the quality of those relationships and characteristics of the context. His work includes the study of those issues from a cross-cultural perspective and the use of observational methodologies in naturalistic settings.Dr. Harriet S. Waters's (Ph.D.) current research focuses on applying basic research in cognitive psychology to problems in early social cognition. She has applied her knowledge of narrative organization and production to the problem of assessing individual differences in representations of early social experience. In addition, she has been studying parental socialization influences on children’s hypotheses about the workings of social relationships.Brian E. Vaughn is developmental scientist who has been involved with attachment research and scholarship for over four decades. He has been instrumental in providing validation data for several widely used measures of attachment (e.g., the Attachment Q-Sort) and has been actively involved in research demonstrating the validity and utility of the Attachment Script Assessment for adults and adolescents. He is currently pursuing research to identify the links between mental representations of attachment and both social engagement and executive function in early childhood.Elaine Reese is a Professor of Psychology at the University of Otago in Dunedin, New Zealand. She received her M.A. and Ph.D. in Developmental Psychology from Emory University in Atlanta, Georgia. Elaine conducts longitudinal studies of memory development and parent-child interactions. Her book for parents, Tell Me a Story: Sharing Stories to Enrich Your Child's World, was published by Oxford University Press in 2013.