Development of a Climate Change Action Scale and Investigation of Its Reliability and Validity

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  • 気候変動対策行動尺度の作成と信頼性・妥当性の検討
  • キコウ ヘンドウ タイサク コウドウ シャクド ノ サクセイ ト シンライセイ ・ ダトウセイ ノ ケントウ

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Abstract

In examining residentsʼ efforts to combat climate change, it is necessary to cover not only mitigation actions to reduce greenhouse gas emissions but also a wide range of other actions, including adaptation actions to prepare for the effects of climate change. However, the reliability and validity of conventional scales for measuring climate change actions have not been sufficiently examined. For this reason, this study developed a scale to measure climate change actions that include two aspects of residentsʼ climate change mitigation and adaptation behaviors and tested its reliability and validity. For this purpose, an internet survey was conducted among 3,000 male and female registered monitors of a research company, aged between 20 to 79, living in Kanagawa Prefecture. Based on the data obtained, ceiling and floor effects were examined by means and standard deviations for each item, and items were carefully selected. Next, an exploratory factor analysis, a factor analysis using the principal factor method （promax rotation）, was conducted to extract two factors, “long-term/social response” and “shortterm/ personal response,” and to reconstruct the items. Additionally, the reliability and validity of the scale were examined for the obtained scale.　For reliability, Cronbachʼs alpha coefficient was used to examine internal consistency. The results showed that both the factors had high internal consistency, which we believe supports the reliability of this scale. Regarding validity, the factor loadings of the items that comprised the two factors found in the exploratory factor analysis were both greater than 0.5, indicating that factor validity was ensured. Furthermore, a confirmatory factor analysis was conducted on the factor structure model that assumed a correlation between these two factors, and construct validity was examined. As a result, the goodness-of-fit indices of the factor structure model both met the criteria, supporting the construct validity. Finally, we examined whether there were differences in subscale scores due to differences in basic attributes. As a result, we found that both subscales generally showed the associations noted in existing studies, indicating criterion-relevant validity.

Journal

  • 人文研究

    人文研究 (208), 77-100, 2023-03-30

    The Society of Humanities at Kanagawa University

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