Toward a psychology of Homo sapiens : Making psychological science more representative of the human population
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Abstract
Two primary goals of psychological science should be to understand what aspects of human psychology are universal and the way that context and culture produce variability. This requires that we take into account the importance of culture and context in the way that we write our papers and in the types of populations that we sample. However, most research published in our leading journals has relied on sampling WEIRD (Western, educated, industrialized, rich, and democratic) populations. One might expect that our scholarly work and editorial choices would by now reflect the knowledge that Western populations may not be representative of humans generally with respect to any given psychological phenomenon. However, as we show here, almost all research published by one of our leading journals, Psychological Science , relies on Western samples and uses these data in an unreflective way to make inferences about humans in general. To take us forward, we offer a set of concrete proposals for authors, journal editors, and reviewers that may lead to a psychological science that is more representative of the human condition.
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Over 70% of the papers sampled supplied no clear information about participants' race, SES, or language.
“Indeed, despite a near-universal tendency to report empirical results in generic terms, over 70% of the papers we sampled supplied no clear information about participants' race, SES, or language, consistent with other findings in the literature (48).”
From Generic language in scientific communication (2019) · cites this paper as [48]
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Cites
The weirdest people in the world?
Henrich, J., Heine, S. J., & Norenzayan, A. (2010) · Behavioral and Brain Sciences · doi:10.1017/s0140525x0999152x · Cited by 12,641 · see citing works
Weird people, yes, but also weird experiments
Henrich, J., Heine, S., & Norenzayan, A. (2010) · Behavioral and Brain Sciences · doi:10.1017/s0140525x10000038 · Cited by 6,808 · see citing works
WEIRD languages have misled us, too
Majid, A., & Levinson, S. C. (2010) · Behavioral and Brain Sciences · doi:10.1017/s0140525x1000018x · Cited by 4,169 · see citing works
The neglected 95%: why American psychology needs to become less American.
Arnett, J. (2008) · American Psychologist · doi:10.1037/0003-066x.63.7.602 · Cited by 1,656 · see citing works
The persistent sampling bias in developmental psychology: A call to action
Nielsen, M., Haun, D. B. M., Kärtner, J., & Legare, C. H. (2017) · Journal of Experimental Child Psychology · doi:10.1016/j.jecp.2017.04.017 · Cited by 1,023 · see citing works
Constraints on Generality (COG): A Proposed Addition to All Empirical Papers
Simons, D. J., Shoda, Y., & Lindsay, D. S. (2017) · Perspectives on Psychological Science · doi:10.1177/1745691617708630 · Cited by 986 · cited 3× · see citing works
“(9), who suggest authors should be asked to include statements regarding constraints on the generality of their findings.”
BackgroundThe Native Mind: Biological Categorization and Reasoning in Development and Across Cultures.
Medin, D. L., & Scott Atran, B. (2004) · Psychological Review · doi:10.1037/0033-295x.111.4.960 · Cited by 427 · see citing works
Social Psychology and Science: Some Lessons From Solomon Asch
Rozin, P. N. (2001) · Personality and Social Psychology Review · doi:10.1207/s15327957pspr0501_1 · Cited by 351 · see citing works
Hofer, S. M., & Piccinin, A. M. (2009) · Psychological Methods · doi:10.1037/a0015566 · Cited by 248 · see citing works
Medin, D., Ojalehto, B., Marin, A., & Bang, M. (2017) · Nature Human Behaviour · doi:10.1038/s41562-017-0088 · Cited by 146 · see citing works
Culture and the Home-Field Disadvantage
Medin, D., Bennis, W., & Chandler, M. (2010) · Perspectives on Psychological Science · doi:10.1177/1745691610388772 · Cited by 122 · see citing works
Young Children Bet on Their Numerical Skills
Vo, V. A., Li, R., Kornell, N., Pouget, A., & Cantlon, J. F. (2014) · Psychological Science · doi:10.1177/0956797614538458 · Cited by 106 · see citing works
Spousal Relationship Quality and Cardiovascular Risk
Uchino, B. N., Smith, T. W., & Berg, C. A. (2014) · Psychological Science · doi:10.1177/0956797613520015 · Cited by 94 · see citing works
Journal of Personality and Social Psychology: Attitudes and social cognition.
Kitayama, S. (2017) · Journal of Personality and Social Psychology · doi:10.1037/pspa0000077 · Cited by 82 · see citing works
Greenfield, P. M. (2017) · Perspectives on Psychological Science · doi:10.1177/1745691617707314 · Cited by 60 · see citing works
(Dis)advantages of student subjects: What is your research question?
Gächter, S. (2010) · Behavioral and Brain Sciences · doi:10.1017/s0140525x10000099 · Cited by 51 · see citing works
A Lack of Material Resources Causes Harsher Moral Judgments
Pitesa, M., & Thau, S. (2014) · Psychological Science · doi:10.1177/0956797613514092 · Cited by 46 · see citing works
It's not just the subjects – there are too many WEIRD researchers
Meadon, M., & Spurrett, D. (2010) · Behavioral and Brain Sciences · doi:10.1017/s0140525x10000208 · Cited by 42 · see citing works
Gross Domestic Product, Science Interest, and Science Achievement: A Person × Nation Interaction
Tucker–Drob, E. M., Cheung, A. K., & Briley, D. A. (2014) · Psychological Science · doi:10.1177/0956797614548726 · Cited by 37 · see citing works
Tay, L., Morrison, M., & Diener, E. (2014) · Psychological Science · doi:10.1177/0956797614525786 · Cited by 30 · see citing works
Gaertner, L., Sedikides, C., Cai, H., & Brown, J. D. (2010) · Behavioral and Brain Sciences · doi:10.1017/s0140525x10000105 · Cited by 23 · see citing works
Scholarly Merit in a Global Context: The Nation Gap in Psychological Science
Cheek, N. N. (2017) · Perspectives on Psychological Science · doi:10.1177/1745691617708233 · Cited by 23 · see citing works
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Cited by
Sorted by citations
Racial Inequality in Psychological Research: Trends of the Past and Recommendations for the Future
Roberts, S. O., Bareket-Shavit, C., Dollins, F. A., Goldie, P. D., & Mortenson, E. (2020) · Perspectives on Psychological Science · doi:10.1177/1745691620927709 · Cited by 1,049 · see citing works
Cheon, B. K., Melani, I., & Hong, Y.-Y. (2020) · Social Psychological and Personality Science · doi:10.1177/1948550620927269 · Cited by 233 · see citing works
Agarwal, P. K., Nunes, L. D., & Blunt, J. R. (2021) · Educational Psychology Review · doi:10.1007/s10648-021-09595-9 · Cited by 211 · see citing works
Generic language in scientific communication
DeJesus, J. M., Callanan, M. A., Solis, G., & Gelman, S. A. (2019) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1817706116 · Cited by 157 · see citing works
Bentall, R. P., Lloyd, A., Bennett, K., McKay, R., Mason, L., Murphy, J., McBride, O., Hartman, T. K., Gibson-Miller, J., Levita, L., et al. (2021) · PLOS ONE · doi:10.1371/journal.pone.0246339 · Cited by 138 · see citing works
Resistance in repressive contexts: A comprehensive test of psychological predictors.
Ayanian, A. H., Tausch, N., Acar, Y. G., Chayinska, M., Cheung, W.-Y., & Lukyanova, Y. (2021) · Journal of Personality and Social Psychology · doi:10.1037/pspi0000285 · Cited by 137 · see citing works
Hoemann, K., Nielson, C., Yuen, A., Gurera, J. W., Quigley, K. S., & Barrett, L. F. (2021) · Psychological Bulletin · doi:10.1037/bul0000327 · Cited by 83 · see citing works
Generalization Bias in Science
Peters, U., Krauss, A., & Braganza, O. (2022) · Cognitive Science · doi:10.1111/cogs.13188 · Cited by 63 · see citing works
Ghai, S., Fassi, L., Awadh, F., & Orben, A. (2023) · Clinical Psychological Science · doi:10.1177/21677026221114859 · Cited by 55 · see citing works
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Muthukrishna, M., Bell, A., Henrich, J., Curtin, C., Gedranovich, A., McInerney, J., & Thue, B. (2018) · doi:10.2139/ssrn.3259613 · Cited by 38 · see citing works
The influence of culture on wise reasoning in the context of self-friend conflict and its mechanism
WEI, X., & WANG, F. (2021) · Acta Psychologica Sinica · doi:10.3724/sp.j.1041.2021.01244 · Cited by 11 · see citing works
Godbout, N., Martel, N. W., Gewirtz-Meydan, A., Girard, M., & Hébert, M. (2024) · The Journal of Sexual Medicine · doi:10.1093/jsxmed/qdae095 · Cited by 4 · see citing works
Are media reports of published research an accurate representation of the research?
Yu, J., Yeung, C., & Soman, D. (2026) · Behavioural Public Policy · doi:10.1017/bpp.2025.5 · Cited by 4 · see citing works
- Authors
- Rad, M. S., Martingano, A. J., & Ginges, J.
- Affiliations
- The New School (US)
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2018-11-05
- Volume
- 115
- Issue
- 45
- Pages
- 11401-11405
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC6233089
- OpenAlex
- W2900124487
- Cited by
- 746
- References
- 22
- Citations by year
- 2026: 66 · 2025: 93 · 2024: 95 · 2023: 128 · 2022: 101 · 2021: 123 · 2020: 113 · 2019: 19 · 2018: 6
- FWCI
- 85.42
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Science Foundation (SES-0962080)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Psychology Research and Bibliometrics
- Social Sciences › Psychology › Social Psychology › Cultural Differences and Values
- Social Sciences › Psychology › General Psychology › Academic and Historical Perspectives in Psychology
- Keywords
- WEIRD samples, cultural diversity in psychology, cross-cultural generalizability, sampling bias, journal editorial policy, population representativeness
- MeSH terms
- Cognition, Cross-Cultural Comparison, Developing Countries, Humans, Periodicals as Topic, Psychology, Social, Sex Factors, Bibliometrics, Cultural Diversity, Developed Countries, Editorial Policies
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