Note on Habit Formation in Normal and Retarded Subjects

Ellis N. R. Pryer M. W. Distefano M. K. , & Prayer R. S. Learning in mentally defective, normal and superior subjects. Amer. J. ment. Def., 1960, 64, 725–734.

Hull C. L. Principles of behavior. New York: Appleton-Century, 1943.

Hull C. L. A behavior system. New Haven: Yale Univer. Press, 1952.

Lewis D. Quantitative methods in psychology. Iowa City: The Bookshop, 1949.

Pryer R. S. Retroactive inhibition in normals and mental defectives as a function of intelligence level and temporal position of the interpolated task. Amer. J. ment. Def., 1960, in press.

Terman L. M. , & McNemar Q. Terman-McNemar Test of Mental Ability: manual of directions. (rev.) Chicago: World Book, 1949.

Thorndike E. L. , & Lorge I. The teacher's word book of 30,000 words. New York: Teachers Coll., Columbia Univer., 1944.

Underwood B. J. Speed of learning and amount retained: a consideration of methodology. Psychol. Bull., 1954, 51, 276–282.