A Science Daily article discusses research by Brian A. Jacob about the long-term added value of high quality teachers. Jacob’s study, conducted with researchers from Brigham Young University and published in The Journal of Human Resources, found that gains—in student test scores—from so-called high value teachers fades quickly. The study analyzed 1.3 million reading and math test scores from North Carolina students and found that 87 percent of reading gains and 73 percent of math gains, from high quality teachers, fades after one year.
Research by Brian A. Jacob cited in Science Daily article, “How Much Last Year's Teacher Affects This Year’s Test Scores”
November 15, 2010