Scores, hypothesized abilities and Scales on the Lorge-Thorndike Intelligence Tests (LT), Multi-Level Edition, were intercorrelated and factor analyzed to determine overlap of structure-of-intellect (SOI) ability measure, their degree of relationship with LT scales, and the possible presence of second order factors. (Author/BJG)

Discrepancies between the K-ABC and its theoretical base of simultaneous and sequential mental processing; technical and design problems related to disproportionate subtest contributions of the Simultaneous Scale to the Mental Processing Composite; the method of subtest-specific variance computation and use in interpretation; and utility with…

Eighty-two children (ages 4.4 to 6.5 years) were administered a Backward Digit Span test to measure M-space and four conservation tasks (number, substance, continuous quantity, and weight). Based upon a neo-Piagetian theory of intellectual development proposed by Pascual-Leone (1969), two hypotheses were tested: (1) A significant relation should…

Three levels from the Kaufman Assessment Battery for Children (K-ABC) standardization sample were randomly selected and their subtest score intercorrelations were subjected to factor analysis. The analyses yielded minor inconsistencies which suggest the instrument does not primarily measure simultaneous and sequential processing and achievement as…