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Weir, Catherine; Soule, Sarah; Bacchus, Catherine; Rael, Jennifer; Schneider, Jennifer – Merrill-Palmer Quarterly, 2000
Observational reinforcement was studied in 5- to 13-month-old infants in a contingency learning task where brief light-sound stimulation followed touches on a canister. The task was preceded by differing preexperiences for each of four study groups. Overall, results demonstrated that vicarious reinforcement in the preexperiences probably did not…
Descriptors: Caregiver Role, Cognitive Development, Conditioning, Contingency Management

Halford, Graeme S. – Merrill-Palmer Quarterly, 1997
Reviews "Levels of Cognitive Development," which presents a theory of cognitive development integrating discrimination- learning research with understanding of higher cognitive processes. Argues that strengths include its presentation of systematic research and providing continuity between past and present models. Weaknesses include…
Descriptors: Association (Psychology), Associative Learning, Book Reviews, Child Development