Individual differences in industriousness are discussed. It is proposed that reinforcement for increased physical or cognitive performance, or the tolerance of aversive stimulation, gives a reward value to the sensation of high effort and reduces effort's aversiveness. Applications for self-control, moral development, and education are described.…

The relationships between locus of control and other personality variables were studied, using the Nowicki-Strickland Scale. The broad hypotheses were that internal locus of control would be related to a number of other competence-type behaviors and adaptive social functioning. Results of various studies are presented, and it is concluded that the…