Learning ability Child psychology 3 Child development 2 Cognition in children 2 Dissertations, Academic (Ph.D) 2 Grammar, Comparative and general 2 In infancy and childhood 2 Intelligence levels 2 Social conditions 2 Students 2 Thinking 2 Environmental stimulation 1 Language 1 Language acquisition 1 Learning, Psychology of 1 Linguistics 1 Optimality theory (Linguistics) 1 Phonetics & Phonology 1 Preschool children 1 Semantics 1 Temperament 1 Thesis (Ph.D)-Clinical psychology 1 Thesis (Ph.D)-Home science 1