A study conducted by the San Bernadino Valley College showed that students who receive face-to-face tutoring classes see an average increase of 12% in their standardized test. 
They have been also shown to outperform untutored peers across 45 out of 52 academic subjects, including math, biology, computer science, and chemistry. What’s more, students who were being tutored surpassed their non-tutored peers by nearly 90%. Eight-out-of-ten students who receive tutoring get better grades....