Reliability and validity of the Emotion and Arousal Checklist to assess psychological states in the past month

• Published in: Shinrigaku kenkyū Vol. 93; no. 5; pp. 469 - 475
• Main Authors: Oda, Yayoi, Kikuchi, Kenichi
• Format: Journal Article
• Language: Japanese; English
• Published: The Japanese Psychological Association 2022
• Subjects: arousal; checklist; emotion; past month
• ISSN: 0021-5236; 1884-1082
• DOI: 10.4992/jjpsy.93.21313

The Emotion and Arousal Checklist (EACL) is a 33-item questionnaire developed to assess psychological states at a given moment and during the past week. We examined the application of this checklist to assess psychological states during the past month. In Study 1, confirmatory factor analyses identified nine subscales, similar to a previous study, which measured psychological states at a given moment and in the past week. The internal consistency of these subscales was assessed with Cronbach’s alpha. Study 2 confirmed the test-retest reliability at the one-week interval. In Study 3, the participants rated their psychological states during the past week four times at the one-week interval and during the past month at the fourth measurement. Reliability was demonstrated by the correlation between the mean of four times one-week measurement and the measurement for during the past month. Study 4 demonstrated criteria-related validity by comparing the subscale scores between the high- and low-stress groups. These studies confirmed the reliability and validity of the EACL for assessing psychological states during the past month.