Changes in Attitude Homophily due to Video Cultivation

The testers for the experiment were recruited from a pool of college students enrolled in e-commerce and digital graphic design courses. The first session was organized into a group of all participants. The session took two hours, during which the participants viewed four videos, two from each YouTuber (Jeffree Star and Shane Dawson), and filled in two questionnaires. The second session, also performed in a group, lasted eight hours to assure sufficient breaks between the six episodes of The Secret World of Jeffree Star. At the end of the session, the testers completed the same questionnaire about the YouTubers as in the first session. The third and fourth sessions were performed with each tester separately due to the possession of only one license for the FaceReader software and one eye-tracking camera. The third session lasted for 10 hours with short breaks. The testers viewed the entire series while being recorded with FaceReader, and subsequently answered two questionnaires. The last session took one hour to complete. The testers browsed social media while being monitored by the eye-tracking camera.本实验的被试从修读电子商务与数字平面设计课程的大学生群体中招募。第一阶段实验以全体参与者组成的集体形式开展，时长两小时，期间被试观看了四段视频——两位油管博主（YouTuber）杰弗里·斯塔（Jeffree Star）与沙恩·道森（Shane Dawson）各提供两段，并填写两份问卷。第二阶段实验同样采用集体测试形式，时长八小时，以确保《杰夫里·斯塔的秘密世界》（The Secret World of Jeffree Star）六集内容之间拥有充足的休息间隔；该阶段结束后，被试完成了与第一阶段相同的关于两位油管博主的问卷。第三、第四阶段因仅持有一套面部表情分析软件FaceReader的授权与一套眼动追踪摄像头设备，故采用单独测试的形式。第三阶段实验时长十小时，设有短暂休息间隔，被试观看了整部系列剧集，期间使用FaceReader进行数据录制，随后完成两份问卷。最后一个阶段耗时一小时，被试在眼动追踪摄像头的监测下浏览社交媒体平台。