Joe Simmons

@jpsimmon

Prof. at Wharton. I research/teach decision making & research methods. Blog: datacolada.org ; Easy Pre-registration: aspredicted.org

Philadelphia, PA oid.wharton.upenn.edu/profile/jsimmo/ Joined November 2012

166 Following 6.7K Followers 603 Posts

Latest posts 5

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Joe Simmons @jpsimmon Sep 16, 2023

The lawsuit has some interesting Exhibits. datacolada.org/114

datacolada.org [114] Exhibits 3, 4, and 5 We recently presented evidence of data tampering in four retracted papers co-authored by Harvard Business School professor Francesca Gino. She is now suing the three of us (and Harvard University).…

Joe Simmons @jpsimmon 22h

New on Data Colada: strong evidence of fraud in another paper co-authored by Francesca Gino. No fancy forensics needed. datacolada.org/141

datacolada.org [141] Data Falsificada #5: Fold Me Once… In 2023, we wrote a series of posts describing evidence of fraud in four articles co-authored by Harvard professor Francesca Gino. The four papers were retracted and, after Harvard conducted a leng…

Joe Simmons @jpsimmon Sep 2

Evidence of fraud in Study 1 of Ariely and Wertenbroch. We weren't necessarily expecting to interrogate this study, since the recent replication failure focused only on Study 2. But we stumbled on some evidence, which then led us to find an older version of the paper...

Data Colada @DataColada Sep 2

Colada[139] Artificial Deadlines Part 2

Evidence of fraud in the 25 year old gradesheet behind the key finding in an influential paper on deadlines and procrastination (Ariely & Wertenbroch 2002)

datacolada.org/139

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Joe Simmons @jpsimmon Mar 19

Data Colada is now cross-posting on substack. datacolada.substack.com

datacolada.substack.com Data Colada | Uri Simonsohn | Substack Thinking about evidence and vice versa. Click to read Data Colada, by Uri Simonsohn, a Substack publication.

Joe Simmons @jpsimmon Mar 19

New post on Data Colada. I spent a very long time trying to figure that shows extremely *negative* R-squared values from replications of a true effect. The question on my mind was: WHAT?? I learned some stuff. datacolada.org/134

datacolada.org [134] Figuring Out Figure 1 A few years ago our Journal Club discussed an interesting methods paper entitled, “Putting Psychology to the Test: Rethinking Model Evaluation Through Benchmarking and Prediction” (.htm). This post…