This paper summarizes data comparing the correlation patterns of psychometric, social, and demographic variables with intelligence quotient (IQ) and learning potential (LP) scores derived from the Kohs Block Designs and Raven Progressive Matrices procedures. The sample consists of educable mentally retarded special class and institutionalized…

Evaluated were variables effecting the differential performance of 627 educable mentally retarded Ss (mean age 14.5 years) on a test-train-retest task designed to measure learning potential. Family, social, health, schooling, and testing data were collected for the Ss of which 75% were students in public school special classes and 25% were…

This study determined the effectiveness of a group training procedure in improving performance of intellectually average students on the Raven Learning Potential measure, and examined the differential effectiveness of training by race and social class. The sample of 379 second through fifth graders, half of whom were black, were pretested on…