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差异法是一种探求因果联系的逻辑方法。它在实验科学中有着广泛的应用它,也在侦查破案中发挥着重要的作用。运用差异法必须有正反两个场合。在正面场合,有某个情况就有某个现象;在反面场合,没有某个情况就没有某个现象。而这两个场合中的其他情况都相同。由此,就可得出结论说,某个情况是被研究的某个现象的原因。为了防止差异法的误用,要注意在两个场合中,除了一个不同情况外,是否还有其他不同情况;同时,对这个不同情况,要作认真分析,看它究竟是被研究现象的整个原
The difference method is a logical method to search for causal links. It has a wide range of applications in experimental science, and it also plays an important role in detection and detection. There are two occasions to use the difference method. In a positive situation, there is a certain phenomenon in a certain situation; in a negative situation, there is no phenomenon in a certain situation. The other situations are the same in both cases. From this, it can be concluded that a certain situation is the cause of a phenomenon being studied. In order to prevent the misuse of the difference method, we must pay attention to whether there are other different situations besides a different situation in two occasions. At the same time, we must carefully analyze this different situation to see whether it is the entire phenomenon being studied. original