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2. Estimation of average treatment effects based on propensity scores;STATA Journal,2002
3. Predicting success in college: SAT studies of classes graduating since 1980,2001
4. The multiple entrance programs for the universities and their impacts on the equality of opportunities (written in Chinese);Educational Policy Forum,2005
5. The relationship between multi-route promotion program and academic performance (written in Chinese);Journal of Technology,2000