The Cornell University study, titled 'Online Education Platforms Scale College STEM Instruction With Equivalent Outcomes at Lower Cost', tracked more than 300 students in Russia, where top universities standardise online classes for use by institutions with fewer resources. "This new study offers the best available evidence to judge whether online learning can address issues of cost and instructor shortages, showing that it can deliver the same learning outcomes that we're used to, but at a much lower cost." These online courses cost institutions 80% less per student than in-person classes, the study found, while blended classes combining online lectures with in-person discussions lowered the per-student cost by nearly 20%.
https://www.technologydecisions.com.au/content/futureed/news/online-learning-just-as-effective-for-stem-students-study-665442902
