Sally Provence M.D., Distinguished Professor of Pediatrics at the Yale Child Study Center and the Yale School of Medicine, was a Founding Member of Zero To Three. Sally was infinitely wise about young children and was a powerful influence on all her colleagues and students including the other IDA authors.  Her work is reflected throughout the IDA and the Provence Developmental Profile is an important part of her legacy.

Kyle D. Pruett, MD, Past President of the Zero To Three Board of Directors and Clinical Professor of Child Psychiatry at the Yale School of Medicine, is author of over a hundred publications, international lecturer, media consultant and pioneering researcher. An internationally known expert and forensic consultant, Dr. Pruett was recently awarded the Lifetime Teaching Award at the Yale Child Study Center.

Joanna Erikson, M.P.H., is a specialist on public policy and child development with a focus on children with developmental disabilities.  She was a Lecturer at the Child Study Center, Yale University and worked closely with Sally Provence to develop the IDA. As program director of IDA and editor of the IDA Study Guide, she coordinated the planning, field testing, evaluation studies and dissemination of the program. 

Susan Vater Ed.M., is a policy, planning, and program development specialist with expertise in clinical early childhood development, interagency collaboration, and systems design. One of the original IDA authors, she currently serves as President of the CT Association of Infant Mental Health (CT-AIMH) and recently led the initiative to design and implement the Mid-level Developmental Assessment (MLDA) model.

Jennifer Rosinia is an Occupational Therapist and Child Development Specialist, with a special interest in the influence of stress on the developing child. Adjunct faculty at the Erikson Institute for many years, as well as an IDA-2 author, Dr. Rosinia is the president of Kid Links Unlimited, Incorporated, a company whose mission is to link theory to practice, parents with professionals and kids with their optimal potential.

Dr. Foley serves as Consulting Clinical Psychologist, New York Center for Child Development (NYCCD) and Clinical Director of the Training and Technical Assistance Center. Dr. Foley is Co-Director of the Graduate Program in Infant Mental Health and Developmental Practice, a US Department of Education funded Personnel Preparation Program at the Adelphi University Institute for parenting.