The present study was conducted to assess the links between in-class use of social media and academic and social school adjustment of high school students attending 9th and 10th grade in Lithuania. Participants included 216 girls and 103 boys aged 14 to 17 years (M = 15.60) attending high schools in the second largest city of Lithuania. Participants filled questionnaires concerning their use of social media during class time and social adjustment at school. Also, schools provided data on current academic adjustment of participants. The results indicated that more time spent using social networking sites during classes was linked to lower grade point average, more missed classes, and poorer relationships with peers.

本研究旨在评估在课堂上使用社交媒体与立陶宛9年级和10年级高中生的学术和社会学校调整之间的联系。参与者包括216位女孩和103位年龄在14至17岁（M = 15.60）的男孩，他们在立陶宛第二大城市上高中。参与者填写了关于他们在上课时间和在学校进行社会适应时使用社交媒体的问卷。此外，学校还提供了有关参与者当前学业调整的数据。结果表明，上课期间使用社交网站的时间更多与平均成绩较低，错过的课程更多以及与同龄人的关系较差有关。