Dr. Squires is a leading authority on developmental screening, implementation of screening systems, early identification of developmental delays, and parents’ involvement in monitoring their young children’s development. She has served as principal investigator on numerous research studies on developmental screening systems, personnel training, and social-emotional development of at-risk infants and toddlers. Dr. Squires is lead author of the Ages & Stages Questionnaires®, Third Edition (ASQ®-3), Ages & Stages Questionnaires®: Social-Emotional, Second Edition (ASQ®:SE-2), and Social-Emotional Assessment/Evaluation Measure (SEAM™), Research Edition. She has authored or coauthored more than 90 books, chapters, and articles on developmental screening and early childhood disabilities.