Mike DeKay
banner
mikedekay.bsky.social
Mike DeKay
@mikedekay.bsky.social
Associate Professor, Decision Psychology and Quantitative Psychology, The Ohio State University
I will need to change one of my examples for the German cities task.
November 26, 2025 at 2:09 PM
It is interesting that two of the data points in the small data set were from that part of Texas.
July 7, 2025 at 7:07 PM
Nice paper w/ some great points. Maybe see Michel Regenwetter's papers on generalizing to "people." Other examples: Hershey & Shoemaker (1980, reflection effect) and - self-serving - one of mine (2016, do multiple plays eliminate certainty/possibility effects?). Still a role for btw-Ss exps, imho.
June 30, 2025 at 2:33 PM
Wonderful paper! For more on purposive variation, see this 2022 paper on metastudies: journals.sagepub.com/doi/10.1177/...

Free postprint: osf.io/preprints/ps...

It's like Simonsohn et al.'s new mix-and-match method, but with more attention to moderation, generalizability, and statistical power.
June 23, 2025 at 1:35 PM
When completely described, the certain option includes a negation, as in "200 people will be saved and 400 people will not be saved."

Some theories have no place for such negations and so don't make clear predictions. Others predict no framing effect in choices between completely described options.
May 1, 2025 at 7:56 PM
I was there! It was raining the whole time, and people were undeterred.
April 6, 2025 at 3:15 AM
Free postprint on PsyArXiv:
osf.io/preprints/ps...
OSF
osf.io
March 15, 2025 at 12:16 AM
An appeal to anyone overseeing a "megastudy": Treat the whole thing like a big counterbalanced experiment (as in a "metastudy"; see the link), so you don't end up with some of the same problems as meta-analyses, such as having the features of the interventions being correlated and imbalanced.
Accelerating Psychological Science With Metastudies: A Demonstration Using the Risky-Choice Framing Effect - Michael L. DeKay, Nataliya Rubinchik, Zhaojun Li, Paul De Boeck, 2022
A metastudy is a set of many tiny studies (microstudies) created from a much larger collection of possibilities. Metastudies can yield many of the benefits of t...
journals.sagepub.com
March 14, 2025 at 11:59 PM
Wonderful paper! At the risk of appearing/being self-serving, here are three papers on perceptions of energy and water use (not perceptions of others' beliefs) that used similar methods (mixed models):

www.pnas.org/doi/full/10....

www.sciencedirect.com/science/arti...

www.pnas.org/doi/full/10....
March 14, 2025 at 2:26 PM
Living liver donors as well, though not the topic of the film.
February 27, 2025 at 2:14 PM
What source article are you talking about?
January 22, 2025 at 5:47 PM
I don't know about love, but the movie dialog provides a great example of the sunk-cost effect, useful for teaching (or testing) JDM. Jason Alexander's character says something like, "Back out? Forget it, pal! We've got a thousand man-hours in on this."
January 20, 2025 at 7:39 PM
BTW, we're running another one right now, using four scenarios where we found a significant effect in recent studies (in a particular condition) and four scenarios from earlier studies in which the authors found a nonsignificant effect in the same condition. The data are trickling in.
January 19, 2025 at 12:46 AM
You might like the metastudies approach, with stimuli and other aspects of the design varied to learn about generalizability and boundary conditions: journals.sagepub.com/doi/abs/10.1...

We also have follow-ups for framing effects with extreme probabilities, somewhat risky options. See PsyArXiv.
Accelerating Psychological Science With Metastudies: A Demonstration Using the Risky-Choice Framing Effect - Michael L. DeKay, Nataliya Rubinchik, Zhaojun Li, Paul De Boeck, 2022
A metastudy is a set of many tiny studies (microstudies) created from a much larger collection of possibilities. Metastudies can yield many of the benefits of t...
journals.sagepub.com
January 18, 2025 at 7:07 PM
Good advice for non-business psychological research as well. I especially like point 3, about the sampling of stimuli. I would add that we should also sample (or vary) other features of the design as well, to assess generalizability, as in the metastudies approach.
January 18, 2025 at 5:32 PM