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Keywords:

  • community-environmental assessment;
  • community nursing;
  • daily living;
  • MCEI;
  • mental disorders

The purpose of this study was to examine validity and reliability of a community-environmental assessment instrument analysing community-environmental conditions among the mental disorders in a community. Thirty-three factors were extracted from the data based on a nationwide investigation by the factor analysis. The principal component analysis was applied to these extracted factors, and the first principal component score (1PCS) was interpreted as a synthetic index regarding daily living of the mental disorders in the community. Then, validity and reliability of 1PCS were confirmed. The item analyses from a viewpoint of statistics processing were adopted. As a result, coefficient alpha of the reliability was calculated from the scores and variances, and its value was 0.96. Next, kappa statistic was calculated in order to confirm whether two indices derived from the 52-item and 33-item questionnaires had the correspondence of the actual conditions with 1PCS in regard to the population scale of the municipality. As a result, the kappa was 0.94. In this study, we proposed the 33-item questionnaire composed of 33 factors. This was called as the Morita's community-environmental index (MCEI). It was suggested that the MCEI was useful to assess community-environmental conditions regarding daily living of the mental disorders in the community.