Abstract: Two experiment reports concerning worked example studying was logically analyzed and points out that the Ross's experiment design is rationality and Mo lei's experiment design is not rationality. It was also pointed out that the conclusion “the different superficial alike of the example and problem in surface story lines would not only affect the principle's access, but also can affect the principle's use” is not still believed. We ought to restore Ross's results“similar story line only have little or no effects on the use”. Finally the exact way of the experiment design was pointed out.

Key words: earlier example, story lines, object correspondence, use, access