Investigated the hypothesis that children who sustain specific reading disabilities experience difficulty in abstracting and generalizing the invariant components of words containing redundant elements because of basic dysfunction in categorical processing. Subjects were 120 poor and normal readers from the fourth, fifth, and sixth grades.…

Research data consistently demonstrates that white school children score higher on tests of academic ability than Negro children of the same age and grade level, and that this discrepancy increases with time. Is this discrepancy due to a lack of learning proficiency on the part of Negro children or to a lack of learning opportunity? In an attempt…