Archival Version

Response Rates: A total of 933 students from two middle schools were invited to participate in the study between December 2014 and May 2015. Of the 933, 167 (17.9%) consented to participation and completed at least one of the two participation surveys. A total of 164 completed Wave 1 Surveys, while 155 completed Wave 2 Surveys. All students who reported being the primary user of 1) an Android, or 2) iPhone and Facebook user were eligible for an electronic capture phase. Of the 167, a total of 75 (47.0%) enrolled in the electronic capture phase, and an additional two students did not complete any surveys but enrolled in only the electronic capture phase. Thus, of the original 933, 8.3% participated in the electronic capture part.

研究应答率：2014年12月至2015年5月期间，本研究共邀请两所中学的933名学生参与。在全部933名学生中，167名（占比17.9%）同意参与并完成了两项参与式调查中的至少一项；其中164名完成了第一波调查，155名完成了第二波调查。所有自述为以下设备或账号主要使用者的学生均有资格参与电子采集阶段：1）安卓（Android）设备；2）苹果（iPhone）设备且使用脸书（Facebook）。在上述167名学生中，共计75名（占比47.0%）报名参与电子采集阶段，另有2名学生未完成任何调查，但仅参与了电子采集阶段。综上，初始招募的933名学生中，共有8.3%参与了电子采集环节。