The Picture Word Game, a nonverbal test of the ability to use language-related symbols, was administered to 90 low-income urban students in grades 1 through 5. Ss were trained in one class period and then tested in class size groups within 2 days. In addition, previous scores on the Stanford Paragraph Meaning and Vocabulary Subtests were obtained…

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…