Nullius in Verba
Nullius in Verba is a podcast about science—what it is and what it could be. It is hosted by Smriti Mehta from UC Berkeley and Daniël Lakens from Eindhoven University of Technology.
Our logo is an homage to the title page of Novum Organum, which depicts a galleon passing between the mythical Pillars of Hercules on either side of the Strait of Gibraltar. The title of the podcast comes from the motto of the Royal Society, set in typeface Kepler by Robert Slimbach. Our theme song is Newton’s Cradle by Grandbrothers.
Episodes

2 days ago
Episode 70: Scientia Tacita
2 days ago
2 days ago
In this episode, we try to make the concept of tacit knowledge explicit. How much of our scientific knowledge depends on knowledge that we can't communicate directly? How can we replicate studies, if they might rely on tacit knowledge? And why has the concept itself not been made more explicit in the last 45 years? Enjoy.
Collins, H. (2012). Tacit and Explicit Knowledge. University of Chicago Press. https://press.uchicago.edu/ucp/books/book/chicago/T/bo8461024.html
Franklin, A., & Collins, H. (2016). Two Kinds of Case Study and a New Agreement. In T. Sauer & R. Scholl (Eds.), The Philosophy of Historical Case Studies (pp. 95–121). Springer International Publishing. https://doi.org/10.1007/978-3-319-30229-4_6
Polanyi, M. (1966). The Tacit Dimension. University of Chicago Press. https://press.uchicago.edu/ucp/books/book/chicago/T/bo6035368.html
Collins, H. M. (1975). The Seven Sexes: A Study in the Sociology of a Phenomenon, or the Replication of Experiments in Physics. Sociology, 9(2), 205–224. https://doi.org/10.1177/003803857500900202
Gerholm, T. (1990). On Tacit Knowledge in Academia. European Journal of Education, 25(3), 263–271. https://doi.org/10.2307/1503316

Friday Oct 31, 2025
Episode 69: Fraus P-Valoris - II
Friday Oct 31, 2025
Friday Oct 31, 2025
In this episode, we continue the discussion on p-hacking. Were the accusations of p-hacking valid? And how can one avoid said accusations? What are the reasons for p-hacking? And what are some solutions?
Shownotes
Giner-Sorolla, R. (2012). Science or art? How aesthetic standards grease the way through the publication bottleneck but undermine science. Perspectives on Psychological Science, 7(6), 562–571.
Introduction to the Special Section on Research Practices (Barbara Spellman)

Friday Oct 10, 2025
Episode 68: Fraus P-Valoris - I
Friday Oct 10, 2025
Friday Oct 10, 2025
In this two-part episode, we delve into the phenomenon of p-hacking. What are the various terms used to describe practices that inflate error rates? How does terminology shape our understanding and bring about change? What are its necessary and sufficient conditions, and which practices are most common?
Shownotes
Simonsohn, U., Nelson, L. D., & Simmons, J. P. (2014). P-curve: a key to the file-drawer. Journal of Experimental Psychology: General, 143(2), 534.
Simmons, J. P., Nelson, L. D., & Simonsohn, U. (2011). False-positive psychology: Undisclosed flexibility in data collection and analysis allows presenting anything as significant. Psychological Science, 22(11), 1359-1366.
Stefan, A. M., & Schönbrodt, F. D. (2023). Big little lies: A compendium and simulation of p-hacking strategies. Royal Society Open Science, 10(2), 220346.
John, L. K., Loewenstein, G., & Prelec, D. (2012). Measuring the prevalence of questionable research practices with incentives for truth telling. Psychological Science, 23(5), 524-532.
Fiedler, K., & Schwarz, N. (2016). Questionable research practices revisited. Social Psychological and Personality Science, 7(1), 45-52.

Sunday Sep 28, 2025
Episode 67: Investigatio Inhonesta
Sunday Sep 28, 2025
Sunday Sep 28, 2025
In this episode, we discuss unethical research. What are some examples of egregious violations of ethical guidelines? What are some more subtle ways in which research can be unethical?And what should we do with results obtained through unethical research?
Shownotes
The Nuremberg Code
The Declaration of Helsinki
Three Identical Strangers
The ethical implications of the "Monster Study"
'Little Albert' regains his identity
Caplan, A. L. (2021). How should we regard information gathered in Nazi experiments?. AMA Journal of Ethics, 23(1), 55-58.
Is it right to use Nazi research if it can save lives?

Thursday Sep 11, 2025
Episode 66: Psychologia Controversiae
Thursday Sep 11, 2025
Thursday Sep 11, 2025
Boring, E. G. (1929). The psychology of controversy. Psychological Review, 36(2), 97–121. https://doi.org/10.1037/h0072273

Friday Sep 05, 2025
Prologus 66: The Psychology of Controversy (E. G. Boring)
Friday Sep 05, 2025
Friday Sep 05, 2025
Boring, E. G. (1929). The psychology of controversy. Psychological Review, 36(2), 97–121. https://doi.org/10.1037/h0072273

Friday Aug 29, 2025
Episode 65: Scientia de Scientia - II
Friday Aug 29, 2025
Friday Aug 29, 2025
In the second episode on metascience, we discuss the benefits of metascientific study according to Mario Bunge, some key milestones in sociology, psychology, and anthropology of science, and whether there should be a science of the science of science.
Shownotes
Galton, F. (1874). English men of science: Their nature and nurture. McMillian & Co. https://archive.org/details/englishmenofscie00galtuoft
Latour, B. & Woolgar, S. (1979). Laboratory life: The social construction of scientific facts. Sage Publications.
Candolle, A. de (with Fisher - University of Toronto). (1873). Histoire des sciences et des savants depuis deux siècles; suivie d’autres études sur des sujets scientifiques, en particulier sur la sélection dans l’espèce humaine. Genève, Georg. http://archive.org/details/histoiredesscie00cand
Vaesen, K. (2021). French Neopositivism and the Logic, Psychology, and Sociology of Scientific Discovery. HOPOS: The Journal of the International Society for the History of Philosophy of Science, 11(1), 183–200. https://doi.org/10.1086/712934

Saturday Aug 16, 2025
Episode 64: Scientia de Scientia - I
Saturday Aug 16, 2025
Saturday Aug 16, 2025
In the first part of this two-part episode, we explore the foundations of metascience—what it is, how it relates to and differs from the history and philosophy of science, and why understanding its philosophical roots matters. We also discuss the “four pillars” of the field and whether formal experience is necessary to contribute meaningfully to metascientific work.
Shownotes
Gholson, B., Jr, W. R. S. J., Neimeyer, R. A., & Houts, A. C. (Eds.). (1989). Psychology of Science: Contributions to Metascience. Cambridge University Press.
Bunge, M. (1959). Why metascience? Metascientific Queries (pp. 3-27). Charles C Thomas.

Friday Aug 08, 2025
Prologus 64: Why Metascience? (M. Bunge)
Friday Aug 08, 2025
Friday Aug 08, 2025
Bunge, M. (1959). Why metascience? Metascientific Queries (pp. 3-27). Charles C Thomas.

Friday Aug 01, 2025
Episode 63: Experimenta Praematura
Friday Aug 01, 2025
Friday Aug 01, 2025
In this episode we discuss whether psychology is engaging in premature experimentation. Are experiments overused, and should we make greater use of other approaches to knowledge generation? If so, which methods should we use instead? And what can we learn from the way Martians would fund research on soccer? Enjoy.
Rozin, P. (2001). Social psychology and science: Some lessons from Solomon Asch. Personality and Social Psychology Review, 5(1), 2–14.
Brower, D. (1949). The problem of quantification in psychological science. Psychological Review, 56(6), 325–333. https://doi.org/10.1037/h0061802
Danziger, K. (1985). The methodological imperative in psychology. Philosophy of the social sciences, 15(1), 1-13.







