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Author: Joe & Uri

[101] Transparency Makes Research Evaluable: Evaluating a Field Experiment on Crime Published in Nature

Posted on April 28, 2022April 28, 2022 by Joe & Uri

A recently published Nature paper (.htm) examined an interesting psychological hypothesis and applied it to a policy relevant question. The authors ran an ambitious field experiment and posted all their data, code, and materials. They also were transparent in showing the results of many different analyses, including some that yielded non-significant results. This is in…

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[76] Heterogeneity Is Replicable: Evidence From Maluma, MTurk, and Many Labs

Posted on April 24, 2019November 18, 2020 by Joe & Uri

A number of authors have recently proposed that (i) psychological research is highly unpredictable, with identical studies obtaining surprisingly different results, (ii) the presence of heterogeneity decreases the replicability of psychological findings. In this post we provide evidence that contradicts both propositions. Consider these quotes: "heterogeneity persists, and to a reasonable degree, even in […]…

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[46] Controlling the Weather

Posted on February 2, 2016January 30, 2020 by Joe & Uri

Behavioral scientists have put forth evidence that the weather affects all sorts of things, including the stock market, restaurant tips, car purchases, product returns, art prices, and college admissions. It is not easy to properly study the effects of weather on human behavior. This is because weather is (obviously) seasonal, as is much of what…

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[37] Power Posing: Reassessing The Evidence Behind The Most Popular TED Talk

Posted on May 8, 2015February 11, 2020 by Joe & Uri

A recent paper in Psych Science (.pdf) reports a failure to replicate the study that inspired a TED Talk that has been seen 25 million times. [1]  The talk invited viewers to do better in life by assuming high-power poses, just like Wonder Woman’s below, but the replication found that power-posing was inconsequential. If an…

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    © 2021, Uri Simonsohn, Leif Nelson, and Joseph Simmons. For permission to reprint individual blog posts on DataColada please contact us via email..