Published online by Cambridge University Press: 08 October 2018
We validated the Japanese version of the Multidimensional Stress Questionnaire for Couples (MSQ) and examined construct validity and reliability. We conducted an online longitudinal survey of 300 husbands and 300 wives. The Japanese version of the MSQ (MSQ-J) had a two-factor structure centred on internal and external stressors. The internal-stressor factor showed sufficient validity and reliability, indicating its suitability for measuring marital stressors. The external-stressors factor also showed acceptable validity for both husbands and wives. The findings indicate that the MSQ-J is suitable for both research and clinical practice.