1. Experimental design in psychological research;Edwards,1960
2. Motor task performance of highgrade mentally retarded males as a function of the magnitude of incentive;Heber;Amer. J. Ment. Defic.,1959
3. Individual differences in the orienting reflex and semantic conditioning and generalization under different UCs intensities;Maltzman,1965
4. Learning theory and behavior;Mowrer,1960
5. The measurement of meaning;Osgood,1957