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Witte, John F.; Cowen, Joshua M.; Fleming, David J.; Wolf, Patrick J.; Condon, Meghan R.; Lucas-McLean, Juanita – School Choice Demonstration Project, 2010
This is the third-year report in a five-year evaluation of the Milwaukee Parental Choice Program (MPCP). The MPCP, which began in 1990, provides government-funded vouchers for low-income children to attend private schools in the City of Milwaukee. The general purposes of the evaluation are to analyze the effectiveness of the MPCP in terms of…
Descriptors: Private Schools, Private Sector, Graduation Rate, Evaluation
Peer reviewedMarkel, William D. – School Science and Mathematics, 1985
The concept of statistical significance is explained, with specific numerical illustrations. (MNS)
Descriptors: Educational Research, Mathematical Concepts, Probability, Research Methodology
Peer reviewedTerrell, Colin D. – Educational and Psychological Measurement, 1982
Tables are presented giving the critical values of the biserial and the point biserial correlation coefficients (when the null hypothesis assumes a value of zero for the coefficient) at the 0.05 and the 0.01 levels of significance. (Author)
Descriptors: Correlation, Mathematical Formulas, Probability, Research Tools


