Julian Quandt

About Me

I am a Postdoc researcher at the Institute for Cognition and Behavior at WU Vienna University of Economics and Business. My current position is supported by a special research area funding (SFB) from the Austrian Science Fund (FWF), focusing on incoherent belief systems and belief updating dynamics. I earned my PhD from Radboud University (2017-2023), focusing on confidence in value-based decision-making.

I am particularly interested in belief updating, the coherence of belief systems, and the cognitive processes underlying metacognitive judgments. I am also an enthusiast of Bayesian statistics, open science, open research methods (and open bars).

Research Interests

Publications

• 2025
  Shaping food choices with actions and inactions with and without reward and punishment.

  Liu, H., Quandt, J., Zhang, L., Kang, X., Blechert, J., van Lent, T., Holland, R. W., & Veling, H. (2025). Appetite, 208, 107950.

• 2025
  Disentangling the multifaceted nature of certainty in evaluations.

  Quandt, J., Figner, B., Holland, R. W., Carere, M. T., Eversdijk, M., & Veling, H. (2025). Journal of Experimental Psychology: General.

• 2024
  Standard operating procedures for using mixed-effects models.

  Figner, B., Algermissen, J., Burghoorn, F. J., Chen, Z., Fenneman, J., Guo, M., ... (2024). D2P2 Lab, Radboud University.

• 2022
  Confidence in evaluations and value-based decisions reflects variation in experienced values.

  Quandt, J., Figner, B., Holland, R. W., & Veling, H. (2022). Journal of Experimental Psychology: General, 151(4), 820.

• 2022
  Devaluation of NoGo stimuli is both robust and fragile.

  Liu, H., Holland, R. W., Blechert, J., Quandt, J., & Veling, H. (2022). Cognition and Emotion, 36(5), 876-893.

• 2022
  How go/no-go training changes behavior: A value-based decision-making perspective.

  Veling, H., Becker, D., Liu, H., Quandt, J., & Holland, R. W. (2022). Current Opinion in Behavioral Sciences, 47, 101206.

• 2021
  How preference change induced by mere action versus inaction persists over time.

  Chen, Z., Holland, R. W., Quandt, J., Dijksterhuis, A., & Veling, H. (2021). Judgment and Decision Making, 16(1), 201-237.

• 2020
  Updating the p-curve analysis of Carbine and Larson with results from preregistered experiments.

  Veling, H., Chen, Z., Liu, H., Quandt, J., & Holland, R. W. (2020). Health Psychology Review, 14(2), 215-219.

• 2019
  The role of attention in explaining the no-go devaluation effect: Effects on appetitive food items.

  Quandt, J., Holland, R. W., Chen, Z., & Veling, H. (2019). Journal of Experimental Psychology: Human Perception and Performance, 45(8), 1119.

• 2019
  When mere action versus inaction leads to robust preference change.

  Chen, Z., Holland, R. W., Quandt, J., Dijksterhuis, A., & Veling, H. (2019). Journal of Personality and Social Psychology, 117(4), 721.

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