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Category: About Research Design

[51] Greg vs. Jamal: Why Didn’t Bertrand and Mullainathan (2004) Replicate?

Posted on September 6, 2016February 15, 2020 by Uri Simonsohn

Bertrand & Mullainathan (2004, .htm) is one of the best known and most cited American Economic Review (AER) papers [1]. It reports a field experiment in which resumes given typically Black names (e.g., Jamal and Lakisha) received fewer callbacks than those given typically White names (e.g., Greg and Emily). This finding is interpreted as evidence of racial discrimination…

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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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[36] How to Study Discrimination (or Anything) With Names; If You Must

Posted on April 23, 2015May 23, 2020 by Uri Simonsohn

Consider these paraphrased famous findings: “Because his name resembles ‘dentist,’ Dennis became one” (JPSP, .pdf) “Because the applicant was black (named Jamal instead of Greg) he was not interviewed” (AER, .pdf) “Because the applicant was female (named Jennifer instead of John), she got a lower offer” (PNAS, .pdf) Everything that matters (income, age, location, religion) correlates with…

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[31] Women are taller than men: Misusing Occam’s Razor to lobotomize discussions of alternative explanations

Posted on December 18, 2014February 11, 2020 by Uri Simonsohn

Most scientific studies document a pattern for which the authors provide an explanation. The job of readers and reviewers is to examine whether that pattern is better explained by alternative explanations. When alternative explanations are offered, it is common for authors to acknowledge that although, yes, each study has potential confounds, no single alternative explanation…

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Posts on similar topics

About Research Design
  • [51] Greg vs. Jamal: Why Didn’t Bertrand and Mullainathan (2004) Replicate?
  • [46] Controlling the Weather
  • [36] How to Study Discrimination (or Anything) With Names; If You Must
  • [31] Women are taller than men: Misusing Occam’s Razor to lobotomize discussions of alternative explanations

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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..