Social Production Functions Questionnaire (SPF)

TRAILS (TRacking Adolescents' Individual Lives Survey) is an ongoing, multidisciplinary research on the psychological, social and physical development of adolescents and young adults. More than 2700 participants have participated since they were about eleven years old. For over 20 years, these participants have been examined every 2 to 3 years, through questionnaires, interviews, tests and/or physical measurements. Data was collected not only from participants, but also their family members, teachers, peers, and partners. TRAILS consists of a population cohort (TRAILS: POP) and a clinical cohort (TRAILS: CC). Since 2015, participants’ children have been measured in the offspring study TRAILS NEXT.TRAILS（追踪青少年个体生活调查，全称为TRacking Adolescents' Individual Lives Survey）是一项持续性多学科研究，旨在探索青少年与年轻成年群体的心理、社会及躯体发育轨迹。自研究启动以来，已有超过2700名参与者于约11岁时加入研究队列。二十余年来，研究团队每2至3年便通过问卷、访谈、心理测评及躯体测量等手段对上述参与者进行随访评估。研究数据不仅来源于参与者本人，还覆盖其家庭成员、教师、同伴与伴侣。TRAILS包含人群队列（TRAILS: POP）与临床队列（TRAILS: CC）两个子队列。自2015年起，研究团队通过子代研究项目TRAILS NEXT对参与者的子女开展相关测评工作。