Investigation of Students' Academic Abilities in Essay Type Test for Science

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We investigated primary and lower secondary school students' responses for essay type test in TIMSS(1995).As the first trial we observed them as Microsoft Excel type data by using "filter" of Excel In this survey we got suggestion that there is few statements which refer to mechanism of nature.As the second trial we analyze the text data of students' responses by using a text mining software called "Word Miner". We focused on items of following area.1.Items about oxidation and combustion2.Items that require plural aspects3.Items about designing experimentsFrom the results of significance tests for responses in these items following conclusions are drawn.1.There are many statements referring to facts in presented sentences or figures in the items, but many of them merely point some phenomena.2.There are few responses applying laws to phenomena.3.In the some items that require plural aspects Japanese students plural aspects ware regarded as single aspect by international standard for scoring.These might be some reason why Japanese lower secondary school students' score for essay type test of TIMSS is rather low.