Cross-Cultural Adaptation of the Brief Form of the Interpersonal Competence Questionnaire (ICQ-15) into Japanese

Noelia Lucía Martínez-Rives, Pilar Martín Chaparro (), Kenichi Asano, Jone Aliri Lazcano, Olatz Goñi-Balentziaga, Yudai Kaneda, Akemi Hara and Yasuhiro Kotera
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Noelia Lucía Martínez-Rives: Department of Psychiatry and Social Psychology, University of Murcia, 30100 Murcia, Spain
Pilar Martín Chaparro: Department of Psychiatry and Social Psychology, University of Murcia, 30100 Murcia, Spain
Kenichi Asano: Division of Psychology, Faculty of Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
Jone Aliri Lazcano: Department of Clinical and Health Psychology and Research Methodology, Faculty of Psychology, University of the Basque Country/Euskal Herriko Unibertsitatea, 48940 Leioa, Spain
Olatz Goñi-Balentziaga: Department of Clinical and Health Psychology and Research Methodology, Faculty of Psychology, University of the Basque Country/Euskal Herriko Unibertsitatea, 48940 Leioa, Spain
Yudai Kaneda: School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
Akemi Hara: Medical Governance Research Institute, Tokyo 108-0074, Japan
Yasuhiro Kotera: Faculty of Medicine & Health Sciences, University of Nottingham, Nottingham NG7 2TU, UK

Societies, 2025, vol. 15, issue 7, 1-14

Abstract: (1) Background: This study aimed to translate and develop a culturally adapted Japanese version of the brief form of the Interpersonal Competence Questionnaire (ICQ-15) and to evaluate its psychometric properties for Japanese adults. (2) Methods: In the pilot test, we asked five Japanese university students to rate their understanding. Then, a final sample of 428 adults between 18 and 40 years old (45.1%male and 54.0% female) completed the Japanese version of the ICQ-15. To examine the psychometric properties of the ICQ-15, item analyses, confirmatory factor analysis, internal consistency analyses, and convergent and divergent validity analysis were performed. (3) Results: Although the items did not follow a normal distribution, most of them showed a good homogeneity index, suggesting good internal consistency between the items. The confirmatory factor analysis showed that the five-factor model had acceptable fit indices. Spearman correlations between the ICQ-15 and the Communication Skills Questionnaire (CSQ) supported its convergent validity, while correlations between the ICQ-15 and the Patient Health Questionnaire-9 (PHQ-9) supported its divergent validity. (4) Discussion and conclusions: A Japanese version of the ICQ-15 was developed showing good psychometric properties to be used to assess interpersonal competence in adults. This questionnaire demonstrated satisfactory internal consistency reliability among Japanese adults. A future study will investigate the criterion-related validity and temporal stability of the scale.

Keywords: cross-cultural; interpersonal competence; evaluation; questionnaire; Japanese; adults (search for similar items in EconPapers)
JEL-codes: A13 A14 P P0 P1 P2 P3 P4 P5 Z1 (search for similar items in EconPapers)
Date: 2025
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