Two Psychologists Four Beers - Episodes Tagged with “Replication”

Episode 120: Transparent Replications (with Spencer Greenberg)

Yoel Inbar, Michael Inzlicht, and Alexa Tullett — Fri, 06 Jun 2025 09:00:00 -0400

Returning guest Spencer Greenberg joins the show to talk replications, what psychologist think of terror management theory (and other controversial topics), and a machine-learning tool he developed to predict correlations between psychological traits and survey questions.

In this episode, we talk about what Spencer has learned by replicating studies from recent publications in psychology, the decline of p-hacking, and what other threats to validity psychologists should be worried about.

Special Guest: Spencer Greenberg.

Episode 98: Inspired Science (with Spencer Greenberg)

Yoel Inbar, Michael Inzlicht, and Alexa Tullett — Wed, 23 Nov 2022 06:00:00 -0500

Yoel and Alexa are joined by Spencer Greenberg, founder of the behavioral science startup incubator Spark Wave and host of the Clearer Thinking podcast. He describes how he became fascinated with psychology and behavior change, and how he's been working to provide empirically-backed strategies for everday tasks, like making decisions or forming habits. He also offers an alternative perspective on open science, arguing that a phenomenon he calls "importance hacking" has been overshadowed by p-hacking in calls for science reform. Greenberg further challenges the Alexa and Yoel to consider whether the "open scientist" will fall short of what can only be achieved by the truly "inspired scientist." Finally, Spenccer has a major project in the works, and he gives us the honor of the big reveal.

Special Guest: Spencer Greenberg.

Links:

Episode 88: Many Many Labs

Yoel Inbar, Michael Inzlicht, and Alexa Tullett — Wed, 08 Jun 2022 06:00:00 -0400

Earlier this year, the last of five "Many Labs" projects was accepted for publication at Collabra: Psychology, representating the culmination of a nearly-decade long series of multi-lab replication efforts. In this episode, Alexa and Yoel consider what they've learned from Many Labs 1 through 5, including insights about replication, expertise, and the impact (or lack thereof) of small effects. They also discuss their own connections to the project - Yoel as an original author, and Alexa as a researcher examing psychologists' reactions to the findings. Although the co-hosts deny they have any existential fear of death (see Many Labs 4) they do share their most recent life-threatening experiences.

Links:

Episode 31: Is Ego Depletion Real?

Yoel Inbar, Michael Inzlicht, and Alexa Tullett — Wed, 02 Oct 2019 05:00:00 -0400

By listener request, Yoel quizzes Mickey about ego depletion. How did we start studying it? How has the replication crisis changed how we think about it? After more than a decade studying ego depletion, does Mickey still have any faith in the phenomenon?

Bonus: what does it mean to say, "don't @ me"?

Links:

De Hemel Brewery
Don't @ me
The Strength Model of Self-Control — Self-control is a central function of the self and an important key to success in life. The exertion of self-control appears to depend on a limited resource.
Is Ego Depletion Real? An Analysis of Arguments — An influential line of research suggests that initial bouts of self-control increase the susceptibility to self-control failure (ego depletion effect). Despite seemingly abundant evidence, some researchers have suggested that evidence for ego depletion was the sole result of publication bias and p-hacking, with the true effect being indistinguishable from zero.
Self-Control, Ego Depletion, and Social Psychology’s Replication Crisis — Provides Baumeister's perspective on ego depletion and its status in the context of psychology's replication crisis. Reviews history, controversy, evidence.
A series of meta-analytic tests of the depletion effect: Self-control does not seem to rely on a limited resource. - PsycNET — We find very little evidence that the depletion effect is a real phenomenon, at least when assessed with the methods most frequently used in the laboratory. Our results strongly challenge the idea that self-control functions as if it relies on a limited psychological or physical resource.
Bias-Correction Techniques Alone Cannot Determine Whether Ego Depletion is Different from Zero: Commentary on Carter, Kofler, Forster, & McCullough, 2015 by Michael Inzlicht, Will Gervais, Elliot Berkman :: SSRN — Despite our admiration for this program of meta-research, we suggest that bias-corrected meta-analyses cannot yet resolve whether the overall ego depletion is different from zero or not.
RRR – The Ego-Depletion Paradigm — A Multi-Lab Pre-Registered Replication of the Ego-Depletion Paradigm Meta-analysis of the studies revealed that the size of the ego-depletion effect was small with 95% confidence intervals (CIs) that encompassed zero (d = 0.04, 95% CI [−0.07, 0.15].