Reducing Student Absenteeism in the Early Grades by Targeting Parental Beliefs

randomised field experiment across 10 school districts, grades K-5

US elementary school students and their parents, 10 districts

Multi-district randomised trial of a low-cost mailed intervention targeting two parental misbeliefs - that K-5 attendance does not much matter, and an underestimate of how many days their child has actually missed. Presented as the first experimental evidence on improving K-5 attendance at scale. The measured outcome is attendance; no achievement outcome was measured.

The intervention decreased chronic absenteeism by 15%. The abstract's framing is revealing of the field's habit - it opens by asserting that attendance "robustly predicts student outcomes", a predictive claim, and then treats a behavioural attendance gain as if it settled the achievement question. It does not; achievement was never assessed.

Low for the attendance result (randomised). The study is silent on the achievement step, so it supplies no evidence that the intervention changed learning. Note also that the intervention works by changing parent beliefs, which is a mechanism that plausibly correlates with parental traits - heterogeneity of response by parental characteristics is not something a single ITT estimate can rule out.