Individual Interpretation Of Psychoneurotic Inventory Items

The usual finding of greater resistance to extinction (Rn) following partial reinforcement (PR) as compared to continuous reinforcement (CR) has not been well documented with the use of human S s in instrumental conditioning. One hundred twenty male and female college students practiced discrete trials on the pursuit rotor. Resistance was measured by the number of trial S was willing to continue under instructions that S would terminate the experiment. Those S s receiving knowledge of results during 25%, 50%, or 75% of the first 24 trials showed greater Rn (p < .01) than Ss receiving knowledge of results on all 24 trials.