Tom Roeper is a co-author of the DELV tests. He studied linguistics at Harvard and MIT and then taught at the University of Chicago before becoming a professor at the University of Massachusetts Amherst in the Department of Linguistics in 1973. He studies theoretical linguistics through innovative experiments on children’s language, elements of which have found their way into the Diagnostic Evaluation of Language Variation (DELV). Roeper’s work has been supported by the National Institutes of Health and National Science Foundations in the US, Canada, Europe and Asia. He lectures all over the world and collaborates with scholars locally and internationally. His current work investigates the emergence of recursive self-embedding in English, German, Dutch, Japanese, Romanian, Hungarian, Piraha and in the language of mathematics.
In addition to theoretical articles and books, Roeper has written a book for parents, the Prism of Grammar (MIT Press, 2007), a hands-on explanation of modern theories of child language development. In all of these efforts, he is committed to bringing the insights of acquisition research to benefit children.