Examined were the effects of chronological age and mental age on the understanding of logical rules by four subject groups (10- to 14-years-old): 10 average IQ Ss, 10 learning disabled Ss, 10 older educable retarded Ss and 10 younger educable retarded Ss. (Author/CL)

In 1974-1975, a preliminary study was undertaken to investigate the presence of learning disabilities in adults. Previously completed research studies have focused entirely upon the child and adolescent, with a direct concentration on remediation of this problem. Learning disabilities, currently estimated to afflict ten million school-aged…

Examines differences between 45 learning disabled, mentally retarded, and Title I elementary students on intelligence, academic achievement, and behavior measures. Indicates that such students perform similarly on academic achievement and behavior measures. Learning disabled and Title I students were similar on an intelligence measure; mentally…