Hearst, E. (1997). William Nathan Schoenfeld (1915–1996): Innovative scientist, inspiring teacher, relentless questioner, complicated man. Journal of the Experimental Analysis of Behavior, 67, 1-9.

The scientific and academic contributions of the late William N. Schoenfeld (1915–1996) are large and, together with his personal qualities as a researcher, thinker, and teacher, supply the themes for this memorial essay on his work and life.

Key words: behaviorism, learning theory, secondary reinforcement, avoidance behavior, experimental anxiety, schedules of reinforcement, variability of response, religious behavior