Unidimensional-Hierarchy in Value-Intention Scale

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  • SAKAI KEIKO
    SAITAMA INSTITUTE OF TECHNOLOGY JAPANESE JOURNAL OF EDUCATIONAL PSYCHOLOGY
  • YAMAGUCHI AKIHIRO
    UNIVERSITY OF GUMMA JAPANESE JOURNAL OF EDUCATIONAL PSYCHOLOGY
  • HISANO MASAKI
    THE UNIVERSITY OF ELECTRO-COMMUNICATIONS JAPANESE JOURNAL OF EDUCATIONAL PSYCHOLOGY

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Other Title
  • 価値志向性尺度における一次元的階層性の検討
  • 価値志向性尺度における一次元的階層性の検討--項目反応理論の適用
  • カチ シコウセイ シャクド ニ オケル 1ジゲンテキ カイソウセイ ノ ケント
  • An Application of Item Response Theory
  • 項目反応理論の適用

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Item response theory was applied to Value-Intention Scale being developed on the basis of Spranger's (1966) theory according to six types of values (theoretical, economic, aesthetic, religious, social, political). Each of the six subscales corresponding to the six values made various items. Some represented extreme ideal state (ideal type) and some represented more general traits (standard type). When two parameter logistic models were applied to the subscales, if both types of items showed unidimensional, their characteristic curves were supposed to be parallel owing to differences on a difficulty level. We named such parallelism “unidimensional -hierarchy”. From each of the six subscales, a pair of items unidimensional-hierarchical was selected, showing also evident differences in real response rates. Furthermore we examined the individual subjects' explanations for the responses to the items in order to clarify the contents which had determined the statistical characteristics of the items. The qualitative analysis proved that items showing higher difficulty levels contained contents harder to perform, and representing more advanced, ideal states of the value-intention.

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