dynamique sociale (1) recherche (1) évaluation (1) environnement (1) comparaison (1) Comparison (1) Children (1) Roommates (1) Research (1) Nature and nurture (1) Examinations (1) Evaluation (1) Euthenics (1) Ecology (1) Children (1) Brothers and sisters (1) Adulthood (1) Adaptation (Biology) (1) Children's shelters (1) Shapes (1) Research (1) Behavior (1) Number (1) Evaluation (1)