Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20
Abstract Aim Adjustment disorder (AjD) is a prevalent mental disorder with evolving definitions in the International Classification of Diseases, 11th Revision (ICD‐11). The Adjustment Disorder‐New Module‐20 (ADNM‐20) assesses six AjD symptom clusters based on the ICD‐11 criteria and has demonstrated...
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| Format: | Article |
| Language: | English |
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Wiley
2025-06-01
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| Series: | PCN Reports |
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| Online Access: | https://doi.org/10.1002/pcn5.70104 |
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| author | Atsuo Nakagawa Dai Mitsuda Yusuke Umegaki Rahel Bachem Waka Nogami Ryotaro Higuchi Aoi Ito Hiroki Kocha |
| author_facet | Atsuo Nakagawa Dai Mitsuda Yusuke Umegaki Rahel Bachem Waka Nogami Ryotaro Higuchi Aoi Ito Hiroki Kocha |
| author_sort | Atsuo Nakagawa |
| collection | DOAJ |
| description | Abstract Aim Adjustment disorder (AjD) is a prevalent mental disorder with evolving definitions in the International Classification of Diseases, 11th Revision (ICD‐11). The Adjustment Disorder‐New Module‐20 (ADNM‐20) assesses six AjD symptom clusters based on the ICD‐11 criteria and has demonstrated strong psychometric validity. This study aimed to develop and validate a Japanese version of the ADNM‐20 in the general population. Methods A forward–backward translation approach was used to develop the Japanese version of the ADNM‐20. Psychometric properties were assessed through a web‐based survey of 1314 participants, examining factorial validity, construct validity, and internal consistency. Results Confirmatory factor analysis supported the theoretical six‐factor model (comparative fit index = 0.923, root‐mean‐square error of approximation = 0.079), with strong correlations between the ADNM‐20 subscales and external measures (e.g., depression PHQ‐9, r = 0.71; anxiety GAD‐7, r = 0.72). The total ADNM‐20 showed excellent internal consistency (Cronbach's α = 0.953). Conclusion The Japanese ADNM‐20 is a valid and reliable scale for assessing AjD symptoms in the Japanese general population. Further studies involving clinical populations are warranted to confirm its applicability in clinical settings. |
| format | Article |
| id | doaj-art-8bd81ed94dfb44d8aecb5539b22a2fda |
| institution | Kabale University |
| issn | 2769-2558 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | PCN Reports |
| spelling | doaj-art-8bd81ed94dfb44d8aecb5539b22a2fda2025-08-20T03:27:57ZengWileyPCN Reports2769-25582025-06-0142n/an/a10.1002/pcn5.70104Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20Atsuo Nakagawa0Dai Mitsuda1Yusuke Umegaki2Rahel Bachem3Waka Nogami4Ryotaro Higuchi5Aoi Ito6Hiroki Kocha7Department of Neuropsychiatry St. Marianna University School of Medicine Kawasaki JapanDepartment of Neuropsychiatry St. Marianna University School of Medicine Kawasaki JapanFaculty of Human Life and Environment Nara Women's University Nara JapanDepartment of Psychology, Psychology and Clinical Intervention University of Zurich Zurich SwitzerlandDepartment of Neuropsychiatry St. Marianna University School of Medicine Kawasaki JapanDepartment of Neuropsychiatry St. Marianna University School of Medicine Kawasaki JapanDepartment of Neuropsychiatry St. Marianna University School of Medicine Kawasaki JapanDepartment of Neuropsychiatry St. Marianna University School of Medicine Kawasaki JapanAbstract Aim Adjustment disorder (AjD) is a prevalent mental disorder with evolving definitions in the International Classification of Diseases, 11th Revision (ICD‐11). The Adjustment Disorder‐New Module‐20 (ADNM‐20) assesses six AjD symptom clusters based on the ICD‐11 criteria and has demonstrated strong psychometric validity. This study aimed to develop and validate a Japanese version of the ADNM‐20 in the general population. Methods A forward–backward translation approach was used to develop the Japanese version of the ADNM‐20. Psychometric properties were assessed through a web‐based survey of 1314 participants, examining factorial validity, construct validity, and internal consistency. Results Confirmatory factor analysis supported the theoretical six‐factor model (comparative fit index = 0.923, root‐mean‐square error of approximation = 0.079), with strong correlations between the ADNM‐20 subscales and external measures (e.g., depression PHQ‐9, r = 0.71; anxiety GAD‐7, r = 0.72). The total ADNM‐20 showed excellent internal consistency (Cronbach's α = 0.953). Conclusion The Japanese ADNM‐20 is a valid and reliable scale for assessing AjD symptoms in the Japanese general population. Further studies involving clinical populations are warranted to confirm its applicability in clinical settings.https://doi.org/10.1002/pcn5.70104adjustment disorderAdjustment Disorder‐New Module‐20 (ADNM‐20)dimensional approachICD‐11psychometric validation |
| spellingShingle | Atsuo Nakagawa Dai Mitsuda Yusuke Umegaki Rahel Bachem Waka Nogami Ryotaro Higuchi Aoi Ito Hiroki Kocha Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20 PCN Reports adjustment disorder Adjustment Disorder‐New Module‐20 (ADNM‐20) dimensional approach ICD‐11 psychometric validation |
| title | Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20 |
| title_full | Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20 |
| title_fullStr | Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20 |
| title_full_unstemmed | Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20 |
| title_short | Development and cross‐cultural validation of the Japanese version of the Adjustment Disorder‐New Module‐20 |
| title_sort | development and cross cultural validation of the japanese version of the adjustment disorder new module 20 |
| topic | adjustment disorder Adjustment Disorder‐New Module‐20 (ADNM‐20) dimensional approach ICD‐11 psychometric validation |
| url | https://doi.org/10.1002/pcn5.70104 |
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