多米尼西说准实验法是近似一个随机实验的很好方法,“尤其是在这种不可能做随机实验的情况下。”
Dominici said the quasi-experimental approach was a good approximation of a randomized experiment, "especially in this situation where a randomized experiment is not possible. ""
其中最重要的方法有三种:事件案例分析法、自然实验法和准试验法。
In all the researching methods, the three kinds is the most important, that is events and cases analyzing method, natural experiment method and semi-experiment method.
其中最重要的方法有三种:事件案例分析法、自然实验法和准试验法。
In all the researching methods, the three kinds is the most important, that is events and cases analyzing method, natural experiment method and semi-experiment method.
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