Rachel F. Barr is a developmental psychologist whose research focuses on understanding the learning and memory mechanisms that development during infancy.

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Because infants are preverbal techniques rely on imitation and learning methods to find out what infants have learned and how well and how long they remember it. Research has focused on how infants pick up information from different sources, television, siblings, adults, and different contexts. Most recently, research at the Georgetown Early Learning Project focuses on factors that might enhance infant learning from television.