CAMPBELL, DONALD THOMAS

(1916-1996) U.S. psychologist with a PhD in social psychology from University of California in Berkeley. He introduced standard concepts in experimental design such as internal validity and external validity. He also developed the theory of evolutionary epistemology which correlates cognitive processes with biological evolution.

CAMPBELL, DONALD THOMAS: "Donald Thomas Campbell introduced a new methodology to psychology by emphasizing on both internal and external validity."
Cite this page: N., Pam M.S., "CAMPBELL, DONALD THOMAS," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/campbell-donald-thomas/ (accessed July 2, 2020).
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