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Szymczak, H., Keller, L., Debbeler, L. J., Kollmann, J., Lages, N. C., Gollwitzer, P.M., Schupp, H. T., Renner, B. (2020). An increase in vigorous but not moderate physical activity makes people feel they have changed their behavior. Frontiers in Psychology, 11, 1-12.

in press
Book chapter

Bieleke, M., Keller, L., & Gollwitzer, P. M. (in press). If-then planning. In J. Shah (Ed.), Frontiers in social psychology: Self-regulation. New York, NY: Routledge.

in press
Book chapter

Keller, L., Bieleke, M., & Gollwitzer, P. M. (in press). Mindset theory and if-then planning. In K. Sassenberg & M. Vliek (Eds.), Social psychology in action: Evidence-based interventions from theory to practice. New York, NY: Springer.


Keller, L., & Gollwitzer, P. M. (2017). Mindsets affect risk perception and risk-taking behavior: Illusionary optimism and the BART. Social Psychology, 48, 135–147. doi: 10.1027/1864-9335/a000304

Book chapter

Gollwitzer, P. M., & Keller, L. (2016). Mindset theory. In V. Zeigler-Hill & T.K. Shackelford (Eds.), Encyclopedia of personality and individual differences, 1–8. Springer International Publishing. DOI: 10.1007/978-3-319-28099-8_1141-1