title: [BEGINNINGS AND DEVELOPMENT OF PERFORMANCE MOTIVATION. II. IN THE SETTING OF THE SMALL CHILD'S OBJECTIVES. ON THE GENESIS OF THE LEVEL OF REQUIREMENT].
mesh_terms: D002648:Child; D006801:Humans; D009042:Motivation; D002666:Psychology, Child; D012054:Reinforcement, Psychology
keywords: CHILD; CHILD PSYCHOLOGY; MOTIVATION; REINFORCEMENT (PSYCHOLOGY)
vernacular_title: ANFAENGE UND ENTWICKLUNG DER LEISTUNGSMOTIVATION. II. IN DER ZIELSETZUNG DES KLEINKINDES. ZUR GENESE DES ANSPRUCHSNIVEAUS.