1. Changes in IQ of a group of institutionalized mental defectives over a period of two decades.;Alper;American Journal of Mental Deficiency,1959
2. The limitations of infant and preschool tests in the measurement of intelligence;Anderson;Journal of Psychology,1939
3. The predictive value of the Kuhlman-Binet Scale for inmates of a state school for the feebleminded.;Arthur;Journal of Applied Psychology,1933
4. The inadequacy of current intelligence tests for testing Kentucky mountain children.;Asher;Journal of Genetic Psychology,1935
5. Mid-life attainment of the mentally retarded: A longitudinal study.;Baller;Genetic Psychology Monographs,1969