MacArthur Communicative Development Inventories (CDIs)

Dr. Marchman earned her doctoral degree in Developmental Psychology from the University of California, Berkeley, and was a postdoctoral fellow at the University of California, San Diego. She served on the faculty at the University of Wisconsinâ "Madison and the University of Texas at Dallas and was named Distinguished Scholar at the Callier Center for Communication Disorders. She is currently a research scientist in the Department of Psychology at Stanford University and the Department of Developmental-Behavioral Pediatrics at Stanford University School of Medicine. Dr. Marchman has conducted research in several areas of language and cognitive development, language disorders, and early childhood development. Her most recent work focuses on individual differences in language-processing efficiency and vocabulary development in monolingual English and bilingual (Spanish/English) children born full term and preterm. Dr. Marchman is a member of the MacArthur-Bates CDI Advisory Board, the developer of the CDI Scoring Program, and a contributor to Web-CDI, the CDI-CAT, and Wordbank.

Donna J. Thal, Ph.D., holds a master of science degree in speech pathology and audiology from Brooklyn College and a doctorate in speech and hearing sciences from the Graduate School and University Center of the City University of New York (CUNY). She has been a postdoctoral fellow at the Center for Research in Language at UCSD, an assistant professor at Hofstra University, and an assistant professor at Queens College of CUNY. Dr. Thal is a developmental psycholinguist and a certified and licensed speech-language pathologist who has conducted research in a number of areas, including normal and disordered development of language and cognition, children with focal brain injury, and children with delayed onset of language. She has also carried out studies of language development in Spanish-speaking infants and toddlers. Her most recent work focuses on early identification of risk for clinically significant language impairment and is funded by a grant from the National Institute of Deafness and Other Communicative Disorders (NIDCD), within the National Institutes of Health. Dr. Thal is an editorial consultant for language for the Journal of Speech, Language, and Hearing Research and the American Journal of Speech-Language Pathology. She was the California State nominee for the American Speech-Language-Hearing Foundation Outstanding Clinical Achievement Award in 1996, received the Monty Distinguished Faculty Award from SDSU 1998 and the Albert W. Johnson Research Lecturer Award from SDSU in 1999, and was the Wang Family Excellence Award nominee from SDSU in 2000. She served a 4-year term on the Communicative Disorders Review Committee for the NIDCD from 1998 to 2002. Dr. Thal is a co-author of the MacArthur Communicative Development Inventories.

Philip S. Dale, Ph.D., is Professor in Departments of Psychology, Linguistics, and Speech and Hearing Sciences at University of Washington. Dr. Dale's research interests include assessment of young children's language, language development in exceptional populations including linguistically precocious children, early language and cognition, and the effects of various models of intervention for young children with disabilities.

Donna Jackson-Maldonado, Ph.D., is a researcher who has lived in Mexico since her childhood. She is a bilingual specialist in monolingual and bilingual language development in children with different language disorders and those who are typically developing. She has developed several language assessment instruments, including the MacArthur-Bates Communicative Development Inventories.