Lead
Choosing a preschool or daycare involves an excess of information. Social media reviews. Word of mouth from acquaintances. The impression the front entrance makes on a visit. The appeal of a curriculum badge: English immersion, gymnastics, Montessori. All of it can seem equally important, and many families reach the conclusion that they will simply have to go with their gut.
Intuition is not a disqualified input. But the research literature draws a reasonably clear line between the indicators that predict children's developmental outcomes and the indicators that do not. Which factors are statistically associated with child development? Which carry little or no demonstrated association? This article reviews a half-century of early childhood education research and translates it into terms that can be applied during a facility visit.
One caveat belongs at the front: effect sizes in this literature are generally modest. There is no single indicator — no magic credential or room arrangement — that guarantees a strong outcome. What exists is a set of observable signals and the authority to weigh them yourself.