Subjects were tested (118 Down's Syndrome; 108 other mentally handicapped; 123 normal) in a simple discrimination task. Both handicapped groups tended to succeed in matching one card only, in position. The normal group tended to succeed with the full array. Down's Syndrome children tended to adopt a response bias. (Author)

Described is the learning theory of Marc Gold as it has been applied to increasing the learning efficiency of 64 mentally handicapped adolescents. (DB)

Twelve moderately retarded children were trained on 2-choice visual discrimination problems with interpolation of another item between training and retention tests. Results indicated that well-learned items are rehearsed less. (SBT)

Apparently contradictory findings regarding the locus of information processing differences between retarded and nonretarded persons were discussed. (Author)

The study was designed to investigate the learning processes in discrimination shift learning, in terms of developmental views of "logical manipulation by classification." Tasks comparing sizes of intradimensional value-classes and comparing sizes of interdimensional value-classes were devised in order to measure subjects' levels of…

Compared were performances of 12 educable mentally retarded (EMR) and 12 normal children in grade 6 on a perceptual learning task to determine whether individuals with different intelligence levels have different learning abilities. A protable minicomputer was used to present "old letters" (usual lower case letters) and "new letters" (letter-like…

The study found that providing feedback and goals in an accelerating standards condition had a positive effect on the learning of eight retarded children (mean age 9 years) on a five-choice discrimination task requiring vocabulary and perceptual competence. (Author/DB)