The purposes of this research are to examine 1) influences of differences for coping behavior in cases including job conflicts on interpersonal stressors, subjective labor quantity, and job burnout among nurses and 2) effects of interpersonal stressors, subjective labor quantity, and job burnout on tendencies of daily cognitive failures. The concept of interpersonal stressors composed of “concealed real thoughts” and “lack of understanding by the staff,” and the concept of job burnout composed of “emotional exhaustion,” “depersonalization,” and “reduced personal accomplishment.” The results of a questionnaire filled out by 74 nurses revealed that differences for coping behavior influence interpersonal stressors, subjective labor quantity, or job burnout. Additionally, results of multiple regression analysis and path analysis indicated that “concealing real thoughts” and “depersonalization” positively influence tendencies of daily cognitive failures.