One month version of Hikikomori Questionnaire-25 (HQ-25M): Development and initial validation

Affiliations

• ¹ Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan.
• ² Department of Psychology, College of Humanities and Sciences, Nihon University, 3-25-40, Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan.
• ³ Center to Improve Veteran Involvement in Care, VA Portland Health Care System, 3710 SW US Veterans HospitalRd (R&D 66), Portland, Oregon, 97239-2964, USA.
• ⁴ Department of Psychiatry, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd (Multnomah Pavilion, Room 2316), Portland, Oregon, 97239-3098, USA.