Education, SES, and Intelligence

Three studies analyzed the effect of education and social variables on intelligence (represented by one cognitive measure and at the g level) using samples from the SLATINT Project. The results indicated that intelligence, as measured by one measure (e.g., the SPM or IR test), was slightly influenced by education or the SES of schools. However, when intelligence was represented at the latent level (or g factor), the influence of social variables decreased. On the other hand, school performance was primarily influenced by cognitive differences, and secondly by the SES of schools.