Birka Zapf, M.Sc.

Research Interests

• Advice taking & information sampling in the context of product reviews
• Organisational norms
• Spiral of silence

Web Documents

• Zapf, B. (2017). Wenn andere im Fokus stehen: Macht als Verantwortung. wissens.block (188). http://www.wissensdialoge.de/macht_verantwortung

Publications

• Winter, K., Zapf, B., Hütter, M., Tichy, N., & Sassenberg, K. (2021). Selective exposure in action: Do visitors of product evaluation portals select reviews in a biased manner? Cyberpsychology: Journal of Psychosocial Research on Cyberspace, 15(1), Article 4. dx.doi.org/10.5817/cp2021-1-4
• Scholl, A., Sassenberg, K., Zapf, B., & Pummerer, L. (in press). Out of sight, out of mind: Power-holders feel responsible when anticipating face-to-face, but not digital contact with others. Computers in Human Behavior. dx.doi.org/10.1016/j.chb.2020.106472

Konferenzbeiträge

• Zapf, B., Sassenberg, K., & Hütter, M. (2020, June/July 30-4). The silent minority: The impact of (dis-)agreement with the majority opinion and attitude voiced by others on willingness and likelihood to speak up [Conference session]. 19th General Meeting of the European Association of Social Psychology, Krakau, Polen. (Conference canceled)
• Zapf, B., Sassenberg, K., & Hütter, M. (December 2019). Ich bin da anderer Meinung – Sag ich was? Verhalten sich Minderheiten anders als Mehrheiten, wenn es zur Meinungsäußerung kommt?. Talk presented at the Ulm-Tübingen Lab Meeting, Tübingen, Germany.
• Zapf, B., Sassenberg, K., Winter, K., & Hütter, M. (2019, September). Do Online customers select wisely? The influence of interface properties of product rating portals on review selection. Talk presented at the 17th Conference of the Social Psychology Section (Fachgruppentagung Sozialpsychologie), Cologne, Germany.
• Zapf, B., Sassenberg, K., & Hütter, M. (July 2019). I don't agree with you - should I say something? Do minorities behave differently from majorities when it comes to opinion expression?. Talk presented at the 2019 Small Group Meeting on Social Cognition and Decision Sciences, Reutlingen, Germany.
• Zapf, B., Sassenberg, K., Winter, K., & Hütter, M. (2019, March).The influence of interface properties of product rating portals on the review selection. Talk presented at the Campusmeeting of the Leibniz WissenschaftsCampus Tübingen, Germany.
• Zapf, B., Sassenberg, K., & Hütter, M. (2019, March). Sag Ich’s oder sag ich’s nicht? – Verhalten sich Minderheiten anders als Mehrheiten, wenn es zur Meinungsäußerung kommt?  Talk presented at the 12th SoDoc Workshop of the German Psychological Society (DGPs), Saarbrücken, Germany.
• Zapf, B. (2018). I perform, therefore I am - Does the demand for excellence influence well-being at the workplace? Poster presented at the 51st Kongress der Deutschen Gesellschaft für Psychologie (DGPS), Frankfurt.
• Zapf, B., & Scholl, A. (2017, November). Nachhaltigkeitsnormen in Organisationen – Beeinflusst die Auseinandersetzung mit ethischen Grundsätzen das menschliche Verhalten?. Talk presented at the sustainability award for theses, Tübingen, Germany.

Awards

• 2017: Nachhaltigkeitspreis für Abschlussarbeiten