Based on this report, education programs in prison have a massive impact on recidivism. The study also set out to find whether technology-led instruction among inmates could cut down on recidivism as well as teacher-led instruction. The results were positive. Among education program participants, recidivism was slightly lower for those who took computer-driven courses (either self-paced or used in combination with a teacher) than those who took teacher-led courses. Though the difference between the two wasn't enough to be statistically significant given the size of the samples studied, as the researchers indicated, it does mean that computer-led instruction without a teacher is, in fact, as effective as instruction with a teacher for cutting back on repeat offenses. Further, according to the report, "Because computer-assisted instruction can be self-paced and can be supervised by a tutor or an instructor, it is potentially less costly to administer than traditional instruction.
Davis, L. M., Bozick, R., Steele, J. L., Saunders, J., Miles, J. N. V. (2013). Evaluating the effectiveness of correctional education: A meta-analysis of programs that provide education to incarcerated adults. Santa Monica, CA: RAND Corporation. https://www.bja.gov/Publications/RAND_Correctional-Education-Meta-Analysis.pdf