The MVPT-3 features norms based on a nationally representative sample. It also includes response time norms, often used in rehabilitation settings. The manual provides reliability and validity studies and comparisons for clinical populations.Back to the top
Donald D. Hammill
Donald D. Hammill received his doctorate in educational psychology-special education from the University of Texas at Austin in 1963. He had previously served as a teacher in the Corpus Christi (Texas) public schools and as a speech and language therapist in the Deer Park (Texas) public schools. He earned a certificate of clinical competence from the American Speech and Hearing Association in 1963. From 1963 to 1965, he held an assistant research professorship at the Institute of Logopedics at Wichita State University in Kansas, where he studied the language problems of children with brain damage. In 1965 he went to Temple University in Philadelphia, where he became professor of special education. He resigned from Temple in 1972 in order to return home to Texas.
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