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June 2003
In a presentation at the National Press Club June 12, two Harvard researchers issued new findings from their New York voucher evaluation as a response to a Princeton study refuting their claims.
Paul Peterson and William Howell’s new study responds to Princeton University professors Alan Krueger and Pei Zhu who challenged their claim of academic gains among New York City African American scholarship recipients. The Princeton findings have been widely reported. Krueger and Zhu criticized Peterson and Howell’s methodology and claimed that when the numbers were calculated differently, the African American gains disappeared.
Peterson has followed the New York program for three years and issued a previous report last February.
In their response to Krueger and Zhu's report, the Harvard team criticized the Princeton duo’s research methods, calling them unreliable, at risk of bias and relying on a questionable definition of race.
Peterson and Howell said when the numbers are calculated in 120 different ways, 108 times the results show that African-American students attending private schools made statistically significant gains compared to their public school peers.
To learn more, read the report below and news articles about the report:
“New Findings from the New York Voucher Evaluation: A Response to the Princeton Study,” Paul E. Peterson and William G. Howell, 6/12/03
“Researcher Insists N.Y.C. Vouchers Benefit Black Students,” Education Week, 6/18/03
“Report defends vouchers but fails to quell debate,” New York Times, 6/12/03
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