2009 Volume 29 Issue 4 Pages 386-398
We analyzed the structure of Raven's Progressive Matrices by cluster analysis and developed scales by Guttman's scalogram analysis. The subjects consisted of 101 people : 82 normal subjects,18 sufferers of traumatic brain damage, and 1 case of hypoxic encephalopathy. Set AB of Raven's Colored Progressive Matrices, Raven's Standard Progressive Matrices, and Raven's Advanced Progressive Matrices were used and reasoning measurement was devised for graded reasoning ability. From the results, we extracted three structures which were interpreted as detection of simple dimensional regularities based on visuospatial analysis, detection of two-dimensional regularity based on visuospatial analysis, and the reasoning that added conversion to the two-dimensional regularities based on visuospatial analysis. Further we devised 8-unit scale from Guttman scalogram analysis (Rep >.90). The scales correlated with neuropsychological assessments (intelligence, memory and attention tests). We concluded that the three structures and 8-unit scale were useful for evaluating graded reasoning.
