The Impact of Preschool Entry Age on Children’s Behavioral and Developmental Health in Medicaid

Maya Rossin-Slater, Adrienne Sabety and Aileen Wu

No 34677, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: We find that preschools facilitate early diagnosis and treatment of conditions that can hinder learning. Low-income children born shortly before their state's school-entry cutoff date are 16.9, 9.3, and 14.8 percent more likely to be diagnosed with Attention Deficit Hyperactivity Disorder, a speech or language disorder, and a hearing or vision condition at ages three and four, compared to children born after the cutoff. They are also more likely to receive downstream services. Findings emphasize the role of earlier and longer exposure to public preschool in driving diagnostic gaps previously attributed to elementary school-entry and within-grade peer comparisons.

JEL-codes: I18 J13 (search for similar items in EconPapers)
Date: 2026-01
Note: CH ED EH PE
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