Julia Velten

Mobile phone addiction was the mediator and physical activity was the moderator between bullying victimization and sleep quality

Profiling students’ learning engagement in MOOC discussions to identify learning achievement: An automated configurational approach

Relationship Between Daily Stress, Depression Symptoms, and Facebook Addiction Disorder in Germany and in the United States

Testing measurement invariance of the Depression, Anxiety, and Stress Scales (DASS-21) across four countries.