Problems With IQ Gains:The Huge Vocabulary Gap

摘要

Despite Kaufman, Raven's Progressive Matrices and the Wechsler subtest Similarities are testswhose gains call for special explanation. The spread of "scientific spectacles" is the key, but itsexplanatory potential has been exhausted. Three trends force us to look elsewhere: (a) gains onWechsler subtests such as Picture Arrangement, (b) gains in developed nations persisting into the21 st century, (c) the growing gap between the active vocabularies of parents and their children.