Influencing the Rate of Mental Growth in Retarded Children through Environmental Stimulation

Berry C. S. “The intelligence quotient of mentally retarded school children.” School and Soc., 17: 1923, 723–729.

Kephart N. C. The effect of a highly specialized program upon the IQ in high-grade mentally deficient boys. (Accepted for publication in Proc. and Addr. of the Amer. Assoc. for Mental Deficiency, 1939.)

Kephart N. C. , and Strauss A. A. “A clinical factor influencing variations in IQ.” (Accepted for publication in American Journal of Orthopsychiatry.)

Skeels H. M. , and Fillmore E. A. “The mental development of children from underprivileged homes.” Ped. Sem. and Jour. Genet. Psychol., 50: 1937, 427–439.

Skeels H. M. , Updegraff R. , Wellman B. L. , and Williams H. M. Study of Environmental Stimulation: An Orphanage Preschool Project. (University of Iowa Studies in Child Welfare, Vol. 15, No. 4: Iowa City, 1938) 191 pp.

Strauss A. A. , and Kephart N. C. “Rate of mental growth in a constant environment among higher grade moron and borderline children.” (Accepted for publication in Proc. and Addr. of the Amer. Assoc. for Mental Deficiency, 1939.)

Town C. H. The Intelligence Quotient. Is it a Constant Value? Research Studies from the Psychological Clinic of the Children's Aid Society of Buffalo and Erie County. (Childrens Aid Society: Buffalo, 1938) 20 pp.