Abstract
The effects of different physical-effort requirements on behavioral resistance to change were examined with undergraduate students engaging in a computer task for points exchangeable for money. In Baseline, button pressing was maintained on a multiple variable interval (VI) 45-s VI 45-s schedule of reinforcement with two physical-effort requirements: 10 N in the Low-Effort Component and 50 N in the High-Effort Component. In Test, button pressing was disrupted by a multiple extinction (EXT) EXT schedule plus anagrams as a concurrent task for five participants. For other two participants, button pressing was disrupted only by a multiple EXT EXT in one test, and both disruptors were implemented together in the second test. Baseline and Test conditions were replicated in an ABAB design. Resistance to change was greater in the presence of discriminative stimuli associated with the Low-Effort Component to six participants during the first test and to four participants during the second test. The present findings suggest differences in physical-effort can contribute to differences in resistance to change.
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