原著

著者

Satoru HARANO, Kouji KASAI, Takeo MIYAKE, Eise YOKOYAMA,
Kenshu SUZUKI, Yoshitaka KANEITA and Takashi OHIDA
Division of Public Health, Department of Social Medicine, School of Medicine, Nihon University

要旨

The Nichidai Stress Check List (NSCL) was developed as a self-administrated instrument to assess workers’stress conditions including their coping competencies. This study was conducted to confirm its validity and reliability.Two hundreds Japanese male employees from five workplaces were enrolled. All participants were tested withthe NSCL, the State-Trait Anxiety Inventory (STAI), and World Health Organization Quality of Life (WHO/QOL)at the beginning of the study. Eighty three of them were tested with the NSCL at three months after stress intervention,and sixty of them after rest intervention. Fifty seven of them were tested with it at the same time without anyintervention. Cronbach’s alpha coefficient, as internal consistency, of the NSCL was 0.87 and Pearson’s correlationat three months, as the test-retest reliability coefficient, was 0.775. Correlation coefficients of the NSCL, as theconvergence validity, were 0.666 with A-State, 0.646 with A-Trait, and -0.719 with WHO/QOL questionnaires.The NSCL validity coefficient was 0.92 with A-State, 0.90 with A-Trait, and 0.91 with WHO/QOL. The socialsupports component of the NSCL was closely associated with WHO/QOL social relationships. NSCL scores weresignificantly reduced only in an intervention group. These results indicate that NSCL has sufficient reliability andvalidity with stressful condition, and that it must be useful to assess the effects of stress prevention and managementprograms.

keyword

Stress reaction, Questionnaire, Validity