title: An Historical Framework for Cohort Differences in Intelligence.
abstract: This article reviews key issues regarding the controversy on the direction and magnitude of cohort differences in intelligence. Data from the Seattle Longitudinal Study (SLS) illustrate why differences must be studied across multiple cohorts and multiple chronological ages. Differential cohort patterns for multiple dimensions of intelligence are described. A conceptual framework is suggested for the identification of historical influences important for developmental study of cohort differences.
authors.affiliation: The Pennsylvania State University.
authors.forename: K Warner
authors.initials: KW
authors.lastname: Schaie
authors.forename: Sherry L
authors.initials: SL
authors.lastname: Willis
authors.forename: Sara
authors.initials: S
authors.lastname: Pennak