Educational assessment evaluation and accountability. 2010;22(3):227-247. doi: 10.1007/s11092-010-9099-6 Q12.82025

Time to the doctorate: Multilevel discrete-time hazard analysis

攻读博士学位的时间：多水平离散时间风险分析

DOI: 10.1007/s11092-010-9099-6

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