TY  - JOUR
AB  - We study a randomized controlled trial of an online mathematics tutoring program scaled from a successful pilot and implemented entirely by regional education authorities in Spain, using interim public-school teachers rather than specially recruited tutors. Assignment to tutoring increased end-of- year grades by 0.15σ and standardized math test scores by 0.11σ — approximately one-third of pilot effects. An experimental socio-emotional module improved affective outcomes but not academic gains. Results provide realistic benchmarks for the ”voltage drop” policymakers should anticipate when scaling evidence-based interventions.
AU  - Gortazar, Lucas 
AU  - Calle, María 
AU  - Hernandez-de-Benito, Maria 
AU  - Hupkau, Claudia 
AU  - Molina-Millán, Teresa 
AU  - Roldán-Monés, Antonio 
PY  - 2026
ST  - From Pilot to Policy: Experimental Evidence from Scaling Online Tutoring
TI  - From Pilot to Policy: Experimental Evidence from Scaling Online Tutoring
UR  - http://www.edworkingpapers.com/ai26-1496
ER  -