47. People who create computer games rarely talk about the role operant conditioning plays
in their products. For an article that outlines how operant conditioning is a key part of
successful computer games, see John Hopson, Behavioral Game Design, Gamasutra
(April 27, 2001), at http://www.gamasutra.com/features/20010427/hopson_01.htm.
48. M. R. Lepper and D. Greene, Over justification research and beyond: Toward a means-
end analysis of intrinsic and extrinsic motivation, in M. R. Lepper and D. Greene (eds.),
The Hidden Costs of Reward: New Perspectives on the Psychology of Human Motivation
(Hillsdale, NJ: Erlbaum, 1978), pp. 109–148.
Chapter 3 Computers as Persuasive Tools
■
59