Dr. Hirokazu Yoshikawa is a Professor of Education and the Academic Dean at the Harvard Graduate School of Education, positions he has held since 2006 and 2011 respectively.

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Only 56% of students who enroll in a four-year college earn a bachelor's degree within six years, according to a report last year by the Harvard Graduate School of Education.

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Willett of the Harvard Graduate School of Education.

FORBES: The Big Lie

The opinions of students, regularly used at institutions of higher education, have been shown to correlate with overall student performance at the middle-school level, said Thomas Kane, a professor of education and economics at the Harvard Graduate School of Education who has studied the issue.

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Mr. West is a professor at Harvard's Graduate School of Education.

WSJ: Peterson, Howell and West: Teachers Unions Have a Popularity Problem