test (1) établissement scolaire (1) santé publique et assainissement (1) association (1) entassement (1) norme (1) infrastructure (1) logement (1) ménage (1) crime (1) taux (1) Afrique (1) Housing (1) Development (1) Context (1) Children (1) Methods (1) Scores (1) Preschool children (1) Water (1) Violence (1) Tallies (1) Success (1) South Africa (1) Social groups (1) Short-term memory (1) Sanitation (1) Running (1) Readiness for school (1) Poor (1)