RT Journal Article SR Electronic T1 Online education platforms scale college STEM instruction with equivalent learning outcomes at lower cost JF Science Advances JO Sci Adv FD American Association for the Advancement of Science SP eaay5324 DO 10.1126/sciadv.aay5324 VO 6 IS 15 A1 Chirikov, Igor A1 Semenova, Tatiana A1 Maloshonok, Natalia A1 Bettinger, Eric A1 Kizilcec, René F. YR 2020 UL http://advances.sciencemag.org/content/6/15/eaay5324.abstract AB Meeting global demand for growing the science, technology, engineering, and mathematics (STEM) workforce requires solutions for the shortage of qualified instructors. We propose and evaluate a model for scaling up affordable access to effective STEM education through national online education platforms. These platforms allow resource-constrained higher education institutions to adopt online courses produced by the country’s top universities and departments. A multisite randomized controlled trial tested this model with fully online and blended instruction modalities in Russia’s online education platform. We find that online and blended instruction produce similar student learning outcomes as traditional in-person instruction at substantially lower costs. Adopting this model at scale reduces faculty compensation costs that can fund increases in STEM enrollment.