Norbert Kerr

{{short description|American social psychologist}}

{{Use mdy dates|date=September 2024}}

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| birth_date = {{birth date and age|1948|12|10}}

| birth_place = Lebanon, Missouri

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| nationality = American

| fields = Social psychology

| workplaces = University of California, San Diego
Michigan State University
University of Kent

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| education = Washington University in St. Louis
University of Illinois at Urbana–Champaign

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| thesis_title = Comparative tests of several predictive models of informational social influence

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| thesis_year = 1974

| doctoral_advisor = James H. Davis

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| known_for = Kohler effect

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| awards = Fellow of the Society for Personality and Social Psychology since 1984
Fellow of the Association for Psychological Science since 1989

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Norbert Lee Kerr (born December 10, 1948){{Cite web |url=https://msu.edu/user/kerr/vita/vita.pdf |title=Norbert L. Kerr Curriculum Vitae |access-date=June 21, 2018}} is an American social psychologist and Emeritus Professor of Psychology at Michigan State University. As of 2014, he also held a part-time appointment as Professor of Social Psychology at the University of Kent in England. He has researched the Kohler effect{{Cite web |url=https://www.thecut.com/2018/04/how-to-be-a-tiny-bit-better-at-working-out.html |title=How to Be a Tiny Bit Better at Group Workout Classes |last=Volpe |first=Allie |date=April 25, 2018 |website=The Cut |language=en |access-date=June 22, 2018}} and factors influencing decision-making by juries.{{Cite news |url=https://www.nytimes.com/1994/04/22/us/may-it-please-the-public-lawyers-exploit-media-attention-as-a-defense-tactic.html |title=May It Please the Public; Lawyers Exploit Media Attention as a Defense Tactic |last=Hoffman |first=Jan |date=April 22, 1994 |work=The New York Times |access-date=June 22, 2018 |language=en}}{{Cite book |last1=Hans |first1=Valerie P. |author-link=Valerie Hans |url=https://books.google.com/books?id=TRn3BwAAQBAJ |title=Judging the Jury |last2=Vidmar |first2=Neil |date=November 11, 2013 |publisher=Springer |isbn=9781489964632 |pages=145–6 |language=en}} In 1998, Kerr coined the term "HARKing" (hypothesizing after the results are known).{{cite journal |last1=Kerr |first1=N. L. |date=1998 |title=HARKing: Hypothesizing after the results are known. |journal=Personality and Social Psychology Review |volume=2 |issue=3 |pages=196–217 |doi=10.1207/s15327957pspr0203_4 |pmid=15647155 |doi-access=free}}{{cite journal |last1=Bishop |first1=D. |title=Rein in the four horsemen of irreproducibility |journal=Nature |date=2019 |volume=568 |issue=7753 |page=435 |doi=10.1038/d41586-019-01307-2 |pmid=31019328 |bibcode=2019Natur.568..435B |doi-access=free |quote=The term HARKing was coined in 1998 (N. L. Kerr Pers. Soc. Psychol. Rev. 2, 196–217; 1998). }}

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