Abstract: This paper analyzed the two researches made by Ross on the influence of superficial similarities between examples and test items both on the access and the use of principles and the research made by Mo Lei in 2000 which turned down the conclusion made by Ross that superficial story line had no influence on the use of principle. It was pointed out that the research made by Mo in 2000 had thorough foundation. According to the design and the results of Mo’s experiment, it could be concluded logically that the superficial story line could influence the use of principles. It was just because the author didn’t know the basic design logic of psychological experiment and didn’t comprehend the design logic of Mo’s experiment that the paper by Shao Guanghua raised the criticism of Mo’s research. And this criticism was groundless.

Key words: example, superficial story line, correspondence of objects, access of principle, use of principles