The K-12 and higher education reform programs of the Gates Foundation have been criticized by some education professionals, parents, and researchers because they have driven the conversation on education reform to such an extent that they may marginalize researchers who do not support Gates' predetermined policy preferences. Several Gates-backed policies such as small schools, charter schools, and increasing class sizes have been expensive and disruptive, but some studies indicate they have not improved educational outcomes and may have caused harm. Peer reviewed scientific studies at Stanford find that Charter Schools do not systematically improve student performance.
Examples of some of the K-12 reforms advocated by the foundation include closing ineffective neighborhood schools in favor of privately run charter schools; extensively using standardized test scores to evaluate the progress of students, teachers, and schools; and merit pay for teachers based on student test scores. Critics also believe that the Gates Foundation exerts too much influence over public education policy without being accountable to voters or taxpayers.
Critics say the Gates Foundation has overlooked the links between poverty and poor academic achievement, and has unfairly demonized teachers for poor achievement by underprivileged students. They contend that the Gates Foundation should be embracing anti-poverty and living wage policies rather than pursuing untested and empirically unsupported education reforms.
Critics say that Gates-backed reforms such as increasing the use of technology in education may financially benefit Microsoft and the Gates family.