The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.
Ten years of research on group size and helping.
Abstract
In the decade following Latane and Darley's publication of the discovery that the presence of other people inhibits an individual from intervening in an emergency, numerous researchers have attempted to replicate this finding, extend its range of applicability, and determine what boundary conditions limit it. In the present article, we review both published and unpublished research, with special attention to the nature of the precipitating incident, the ambiguity of the helping situation, laboratory versus field settings, characteristics of the subjects, of the victim, and of other bystanders, and the amount and kinds of communication among bystanders. We conclude that, despite the great diversity of styles, settings, and techniques among the studies, the social inhibition of helping is a remarkably consistent phenomenon; but we identify some conditions under which the effect can be weakened or eliminated. Finally, we explore the implications of these findings for assessing and increasing a victim's likelihood of receiving help. Some 10 years have passed since Latane and Darley (1970) published their monograph reporting the results of a program of research on bystander intervention in emergencies. This research provided strong support for the general proposition that "the presence of other people serves to inhibit the impulse to help " (p. 38), Their work elicited a good deal of interest, and it has stimulated a large amount of subsequent research in this area. We see at leas…
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“The collected data shows a robust tendency, namely that the chance of help being offered diminishes as the number of witnesses increases.”
From Pluralistic ignorance in the bystander effect: informational dynamics of unresponsive witnesses in situations calling for intervention (2014) · cites this paper as Latané and Nida (1981)
In the citing paper
“Summarizing 33 studies with face-to-face interaction, the effective individual probability of helping was 50%, with an effective individual response rate in groups only 22%.”
From Pluralistic ignorance in the bystander effect: informational dynamics of unresponsive witnesses in situations calling for intervention (2014) · cites this paper as Latané and Nida, 1981
In the citing paper
“Most of these studies involved groups of 2.”
From Pluralistic ignorance in the bystander effect: informational dynamics of unresponsive witnesses in situations calling for intervention (2014) · cites this paper as Latané and Nida, 1981
In the citing paper
“The meta-study (Latané and Nida, 1981) strongly indicates that determining social influence occurs in groups of size 2.”
From Pluralistic ignorance in the bystander effect: informational dynamics of unresponsive witnesses in situations calling for intervention (2014) · cites this paper as Latané and Nida, 1981
Citations
Cites
A theory of social comparison processes
Festinger, L. (1954) · Human Relations · doi:10.1177/001872675400700202 · Cited by 20,926
The Handbook of Social Psychology
Gravatt, A. E., Lindzey, G. E., & Aronson, F. (1969) · The Family Coordinator · doi:10.2307/582242 · Cited by 12,518
The file drawer problem and tolerance for null results.
Rosenthal, R. (1979) · Psychological Bulletin · doi:10.1037/0033-2909.86.3.638 · Cited by 9,068
Bystander intervention in emergencies: Diffusion of responsibility.
Darley, J. M., & Latane, B. (1968) · Journal of Personality and Social Psychology · doi:10.1037/h0025589 · Cited by 3,083 · cited 3×
“In the initial study of this type (Darley & Latane, 1968), participants in a group discussion heard (via an intercom) a fellow participant suffer a seizure.”
BackgroundSelf-citation(1970) · Medical Entomology and Zoology · Cited by 2,372
Self-citationThe Experience of Living in Cities
Milgram, S. (1970) · Science · doi:10.1126/science.167.3924.1461 · Cited by 1,275
Group inhibition of bystander intervention in emergencies.
Latane, B., & Darley, J. M. (1968) · Journal of Personality and Social Psychology · doi:10.1037/h0026570 · Cited by 1,252
Self-citationGood Samaritanism: An underground phenomenon?
Piliavin, I. M., Rodin, J., & Piliavin, J. A. (1969) · Journal of Personality and Social Psychology · doi:10.1037/h0028433 · Cited by 516
The yin and yang of progress in social psychology: Seven koan.
McGuire, W. J. (1973) · Journal of Personality and Social Psychology · doi:10.1037/h0034345 · Cited by 490
A lady in distress: Inhibiting effects of friends and strangers on bystander intervention
Latané, B., & Rodin, J. (1969) · Journal of Experimental Social Psychology · doi:10.1016/0022-1031(69)90046-8 · Cited by 408
Self-citation
Cited by
Sorted by citations
Items 701–750 of 750
(2024) · The MIT Press eBooks · doi:10.7551/mitpress/15262.003.0029
An Open Letter to Our Students
Machery, É., & Doris, J. M. (2021) · Oxford University Press eBooks · doi:10.1093/oso/9780198719601.005.0001 · Cited by 1
Doris, J. M. (2021) · Oxford University Press eBooks · doi:10.1093/oso/9780198719601.002.0007
Doris, J. M. (2021) · Oxford University Press eBooks · doi:10.1093/oso/9780198719601.002.0005
Doris, J. M. (2021) · Oxford University Press eBooks · doi:10.1093/oso/9780198719601.002.0003
Doris, J. M. (2021) · Oxford University Press eBooks · doi:10.1093/oso/9780198719601.002.0004
Testing social impact and self-attention predictions with live audiences and co-actors
Hinsz, V. B. (2024) · Applied Psychology Research · doi:10.59400/apr.v3i1.1217
“An accumulated literature examines the predictions of number of co-actors and audience size on social impact (Latané and Nida, 1981; Mullen, 1986), but rarely have both the sources and targets of the impact been manipulated simultaneously (Jackson and Latané, 1981; Latané and Harkins, 1976).”
BackgroundHan, Y. (2024) · Lecture Notes in Education Psychology and Public Media · doi:10.54254/2753-7048/58/20241768
郭, 志. (2024) · Advances in Psychology · doi:10.12677/ap.2024.149618
Martinez, L. R., & Waterbury, C. J. (2024) · Springer eBooks · doi:10.1007/978-3-031-48129-1_157
Chernyak‐Hai, L. (2024) · Springer eBooks · doi:10.1007/978-3-031-48129-1_182
Investigation of selected Controlling Instruments
Bartram, T. (2024) · eDiss (Georg-August-Universität Göttingen) · doi:10.53846/goediss-10865
Vincent, L. C., & Kouchaki, M. (2024) · Journal of Management · doi:10.1177/01492063241305569
“…of normative pressure; perhaps salience of moral identities makes individuals assume everyone would see the moral nature of the situation, and we know from the bystander effect (Latané & Darley, 1970; Latané & Nida, 1981) that individuals are less likely to act when there are other people pres-ent.”
Li, X., & Schnedler, W. (2025) · Management Science · doi:10.1287/mnsc.2024.06567
Willingness to volunteer among remote workers is insensitive to the team size
Hillenbrand, A., Werner, T., & Winter, F. (2025) · Experimental Economics · doi:10.1017/eec.2024.13
The influence of third-party's power on multi-player fairness decision-making
Lu, X., Li, T., Li, B., & Yang, Z. (2025) · Acta Psychologica · doi:10.1016/j.actpsy.2025.105088
Tricoche, L., & Caspar, É. A. (2025) · OSF Preprints (OSF Preprints) · doi:10.31219/osf.io/s6jtk_v2
Ioku, T., Matsuki, Y., Iwatani, S., Tanaka, A., Yuyama, Y., Mukai, T., Sadamura, M., & Watamura, E. (2025) · THE JAPANESE JOURNAL OF EXPERIMENTAL SOCIAL PSYCHOLOGY · doi:10.2130/jjesp.2413
Appel, P. B., Böck, H., Hompf, F. V. F., Plümer, K. S., Russ, S., & Riener, A. (2025) · Mensch und Computer (MuC) · doi:10.1145/3743049.3748549
Crowdsourced Navigation in Mass Evacuation: A Lab Study on User Contribution
Chung, H., Jiang, R., Shen, S., & Yang, X. J. (2025) · IEEE International Conference on Human-Machine Systems (ICHMS) · doi:10.1109/ichms65439.2025.11154377
Duradoni, M., Serritella, E., Bellotti, M., Licata, A. L., & Guazzini, A. (2025) · Human Behavior and Emerging Technologies · doi:10.1155/hbe2/6251242
Hoenow, N. C. (2025) · Human Nature · doi:10.1007/s12110-025-09508-7
“Third, the feeling of accountability and responsibility for the group’s outcome may be more salient with real, identified partners, whereas it remains diffused in the non-disclosed condition, similar to a bystander effect (Darley and Latané 1968 ; Latané and Dabbs 1975; Latané and Nida 1981).”
Jiang, L., Ye, B., Li, X., Zhang, W., Lan, Z., Liu, P., Sun, X., & Wu, H. (2025) · BMC Veterinary Research · doi:10.1186/s12917-025-05208-7
“Multiple studies report that unfamiliar, uncertain, and ambiguous situations can enhance the influence of DSN [47, 48].”
Hasel, L. E. (2008) · doi:10.31274/rtd-180813-17032
“…of diminished personal responsibility, a perceived dispensability of effort, an attempt to achieve equity of effort, a diffusion of responsibility, evaluation apprehension, or some combination of these variables (Collaros & Anderson, 1969; Latané & Nida, 1981; Latané, Williams, & Harkins, 1979).”
BackgroundFalse Beliefs, Partial Truths: Personal Myths and Ethical Blind Spots
Archer, C., & Hartman, L. P. (2012)
An Exploratory Study into the Role of Altruism in Planning the Control of West Nile Virus
McClurg, A. A. (2009) · UWSpace (University of Waterloo)
Les 20 petites histoires des grandes théories de la psychologie sociale
Girandola, F., Souchet, L., & Jaubert, S. (2025) · Dunod eBooks · doi:10.3917/dunod.bonet.2025.01.0171
Les 20 petites histoires des grandes théories de la psychologie sociale
Capuano, C., & Chekroun, P. (2025) · Dunod eBooks · doi:10.3917/dunod.bonet.2025.01.0120
Nickerson, A. B., Jenkins, L. N., & Fredrick, S. S. (2026) · Springer eBooks · doi:10.1007/978-3-032-12370-1_5
Witnessing Consumer Incivility Toward Service Employees: Pity, Support, and Tipping Behavior
Beck, J. M., Lefebvre, S., & Voorhees, C. M. (2026) · Journal of Service Research · doi:10.1177/10946705251406567
“While prior research has suggested that the number of bystanders can impact helping behavior, the private nature of tipping may eliminate the diffusion of responsibility that is often responsible for driving bystander effects when helping is more public and visible (Latané and Nida 1981).”
Zhang, W., Cao, L., He, R., Yang, T., & Zhu, L. (2026) · International Journal of Behavioral Development · doi:10.1177/01650254261419704
Liu, Y. K., Bradford, B., & Ristea, A. (2026) · Journal of Family Violence · doi:10.1007/s10896-026-01088-z
The Suspicious Porn Consumer: A Semiotic Study of Reports to Child Sexual Abuse Hotlines
Harder, S. K., & Ejbye‐Ernst, P. (2026) · Sexuality & Culture · doi:10.1007/s12119-026-10574-x
“This might point to the theoretical conception of the active bystander as someone who does not experience ambivalence in their interpretations of wrongdoing (Latané & Nida, 1981 ).”
InfluentialGrouped Stakeholders' Journeys: A Dynamic Social Impact Theory Perspective
Clark, M. K., Hollebeek, L. D., Kumar, V., Riivits-Arkonsuo, I., & Liu, Y. (2026) · Psychology and Marketing · doi:10.1002/mar.70138
“…that people may exert influence on or receive influence from others in the social environment (Latané and Bourgeois 2008; Barnett et al. 2020), Latané (1981) social impact theory examines how stakeholders may be sources or targets of social influence (Harton et al. 2022; Baraibar‐Diez et al.…”
InfluentialArai, K. (2026) · Springer eBooks · doi:10.1007/978-981-95-5421-8_12
Bystander effect emerges from individual psychological prospects
Ng, T., & Clifton, S. M. (2026) · Chaos An Interdisciplinary Journal of Nonlinear Science · doi:10.1063/5.0323615
Beş Yıldızlı Otel İşletmelerinde Korku Kültürünün İzleyici Etkisi Üzerindeki Rolü
Nazikgül, M., Çavuş, M., Deniz, G., & Aydın, Ş. (2026) · Alanya Akademik Bakış · doi:10.29023/alanyaakademik.1826509
Liu, D., Wang, H., Liu, Y., Gao, Y. (., & Pancho, M. (2026) · Journal of Hospitality Marketing & Management · doi:10.1080/19368623.2026.2684023
Mensah, K., Madichie, N. O., & Mensah, G. K. (2026) · Palgrave studies of marketing in emerging economies · doi:10.1007/978-3-032-27126-6_5
Josupeit, C. (2026) · Cyberpsychology: Journal of Psychosocial Research on Cyberspace · doi:10.5817/cp2026-4-14
Psychological insights for coping with embarrassment in clinical medicine
Redelmeier, D. A., & Roach, J. (2026) · Journal of Hospital Medicine · doi:10.1002/jhm.70471
When employees remain silent: explaining responses to suspected alcohol problems among co-workers
Wilson, M., Hensing, G. K. E., & Berglund, K. J. (2026) · Frontiers in Organizational Psychology · doi:10.3389/forgp.2026.1938613
Doğan, R. N. G. (2026) · Ordu İlahiyat · doi:10.70674/oi.1956787
Ma, D., Cheng, Y., & Tan, H. (2026) · Industrial Management & Data Systems · doi:10.1108/imds-12-2025-1802
Negotiating Support for Failure within the Student Teaching Triad: A Qualitative Case Study
Phoenix, D. B., Haddad, B., Kreifels, M., Mott, R., Burton, S., & Mattos, F. (2026) · Journal of Agricultural Education · doi:10.5032/jae.v67i4.3419
Siddiqui, S., & Schultze‐Krumbholz, A. (2026) · Healthcare · doi:10.3390/healthcare14203550
Diffused Responsibility Hypothesis
Myers, R. (2025) · Springer eBooks · doi:10.1007/978-3-642-27828-0_252-1
A Model of Transactive Memory Development in Teams
Pearsall, M. J. (2008) · UA Campus Repository (The University of Arizona)
Norwood, D. L. (2015) · OpenCommons - UConn (University of Connecticut)
Metadata
- Authors
- Latané, B., & Nida, S.
- Affiliations
- The Ohio State University (US)
- Venue
- Psychological Bulletin
- Published
- 1981-03
- Volume
- 89
- Issue
- 2
- Pages
- 308-324
- ISSN
- 0033-2909 (ISSN-L)
- 1939-1455
- OpenAlex
- W2163256700
- Cited by
- 749
- References
- 50
- Citations by year
- 2026: 21 · 2025: 19 · 2024: 31 · 2023: 48 · 2022: 26 · 2021: 36 · 2020: 21 · 2019: 34 · 2018: 35 · 2017: 36 · 2016: 34 · 2015: 45 · 2014: 31 · 2013: 62 · 2012: 26
- FWCI
- 26.90
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Psychological Bulletin (publishedVersion)
- Topics
- Social Sciences › Psychology › Social Psychology › Psychology of Social Influence
- Social Sciences › Sociology and Political Science › Social and Intergroup Psychology
- Health Sciences › Medicine › Emergency Medicine › Cardiac Arrest and Resuscitation
- Keywords
- bystander intervention, group size, diffusion of responsibility, emergency situations, helping behavior, victim characteristics, boundary conditions, replication
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review