Edward Chace Tolman was an American psychologist and a professor of psychology at the University of California, Berkeley. Through Tolman's theories and works, he founded what is now a branch of psychology known as purposive behaviorism. Tolman also promoted the concept known as latent learning coined by Blodgett (1929). A Review of General Psychology survey, published in 2002, ranked Tolman as the 45th most cited psychologist of the 20th century.