Cumulative Record. Chapter 11: Reinforcement Today. Quote 12

In the usual study of problem solving, . . . the experimenter constructs a complex set of contingencies and simply waits for it to take hold. This is no test of whether the organism can adjust to these contingencies with a performance which would be called a solution. All we can properly conclude is that the experimenter has not constructed an adequate succession of performances. The ability of the experimenter rather than that of the organism is being tested. (p. 170)