Development and evaluation of the efficacy of a web-based ‘social norms’-intervention for the prevention and reduction of substance use in a cluster-controlled trial conducted at e...

by Stefanie M. Helmer, Saskia Muellmann, Hajo Zeeb, Claudia R. Pischke
Published 2016-03-01

“Tell Me How Much Your Friends Consume”—Personal, Behavioral, Social, and Attitudinal Factors Associated with Alcohol and Cannabis Use among European School Students

by Stefanie M. Helmer, Gregor Burkhart, João Matias, Christoph Buck, Feline Engling Cardoso, Julian Vicente
Published 2021-02-01

Evaluation of a blended-learning training concept to train oncology physicians to advise their patients about complementary and integrative medicine (KOKON-KTO): study protocol for...

by Stefanie M. Helmer, Alizé A. Rogge, Felix Fischer, Daniel Pach, Markus Horneber, Stephanie Roll, Claudia M. Witt
Published 2019-01-01

Perceptions of Study Conditions and Depressive Symptoms During the COVID-19 Pandemic Among University Students in Germany: Results of the International COVID-19 Student Well-Being...

by Paula Mayara Matos Fialho, Franca Spatafora, Lisa Kühne, Heide Busse, Stefanie M. Helmer, Hajo Zeeb, Hajo Zeeb, Christiane Stock, Claus Wendt, Claudia R. Pischke
Published 2021-06-01

Effects of a Brief Web-Based “Social Norms”-Intervention on Alcohol, Tobacco and Cannabis Use Among German University Students: Results of a Cluster-Controlled Trial Conducted at E...

by C. R. Pischke, S. M. Helmer, H. Pohlabeln, S. Muellmann, S. Schneider, R. Reintjes, A. Schmidt-Pokrzywniak, M. Girbig, A. Krämer, A. Icks, A. Icks, U. Walter, H. Zeeb, H. Zeeb
Published 2021-05-01