enfant (2) méthode (2) Impact (2) Child care services (2) Child care (2) Number (2) puériculture (2) puits (1) formation (1) test (1) stress (1) développement social (1) établissement scolaire (1) échantillonnage (1) enregistrement (1) protocole (1) pauvreté (1) participation (1) famille (1) effet (1) procès (1) public (1) Economic conditions (1) Testing (1) Children (1) Control (1) Prevention (1) Scores (1) Training (1) Social skills--Study and teaching (1)