A Study of Four School-Ability Tests
Three areas of the city of Minneapolis were cho sen for testing: a "high", a "middle", and a "low" socio-economic status community. The original sample was drawn from specified areas and con tained children in each of grades 2, 4, and 7 with in a given area. It was decided beforehand that no pick-up testing would be done on absentees, so any child not taking all tests on the specified test days was dropped from the study. Table 1 shows the numbers involved in each category.