Jill de Villiers

Jill G. de Villiers (born 1948) is a developmental psychologist known for her work in the field of language acquisition. She is the Sophia and Austin Smith Professor Emerita of Psychology and Philosophy at Smith College. de Villiers is a Fellow of the American Psychological Association. In 2018, she was elected as a Member of American Academy of Arts and Sciences.

de Villiers and her colleagues have developed critical tools for language assessment including the Quick Interactive Language Screener (QUILS), which is a computerized preschool language assessment, and the Diagnostic Evaluation of Language Variation (DELV), which aims to provide assessment for speakers of English dialects such as African-American English. Provided by Wikipedia