A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and bystanders can communicate with each other 'additional bystanders even lead to more, rather than less, helping.' https://t.co/8319gZ31sH
The bystander-effect: a meta-analytic review on bystander intervention in dangerous and non-dangerous emergencies.
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Jun 2019 – Dec 2025Where it's discussed
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AI synopsis
What people are saying
The collective discussions reflect a nuanced view, with some posts emphasizing the robustness of the meta-analysis from multiple studies, while others debate its applicability in dangerous emergencies, using terms like 'robust effect' and 'outdated view.' Words such as 'complex', 'challenging', and 'debate' demonstrate high engagement and interest, while references to research design changes and implications illustrate the moderate impact of the findings.
Most discussions recognize that the meta-analysis confirms the existence of the bystander effect, although some challenge its universality in dangerous situations.
The discussions delve into details about research methods, the nuance of the findings, and implications, indicating high interest.
Participants reference multiple studies, statistical summaries, and debates around the effect’s validity, showing active engagement.
The discourse indicates that the research influences understanding by challenging previous assumptions, thereby slightly changing the perception of the effect.
Abstract in brief
- The review updates previous research on the bystander effect, showing that the presence of others generally decreases helping behavior, but this effect varies depending on factors like danger level and physical costs.
- It finds that in dangerous emergencies, people tend to help more because they're more aroused and recognize the seriousness faster, aligning with the arousal-cost-reward model.
- Interestingly, in some situations, bystanders can actually support and encourage intervention, especially when they are familiar, male, or in virtual presence, which can reduce the usual bystander effect.]
Top posts
Most liked on X and Blueskyy si alguien sabe lo que hay que hacer, lo cual a menudo sucede. Esto no falsea los resultados de Latané y Darley pero sí pasa una cosa: que cuando se revisa la evidencia de este efecto, pues no es tan claro como parece. https://t.co/90gdIcc0Nm
@teritamadozo こんなんどうでしょう?エビデンス重視の人には刺さるかも。 人数が多いと責任が拡散し、誰も行動しなくなる「傍観者効果」が発生する。10人いれば誰かが、ではなく、10人いるから誰も気づかない。 https://t.co/CynsKLD0YB
@ChiaraSegalina @cliobix @alesaura L'effetto spettatore https://t.co/KZFMZaF0JS è stato dimostrato in più occasioni https://t.co/0tGeOvFYOE e tende ad attenuarsi quanto più gli spettatori si conoscono, è identificabile il colpevole della situazione di emergenza, è chiara l'emergenza
@Enroweb il y a au contraire un petit effet qui est démontré par cette meta-analyse (fischer et al 2011), https://t.co/V1jqr89CeV , l'abstract montre que l'analyse est plus complexe que ce que postulait Darley, ça dépend beaucoup des situations et des variables.
A meta-analysis in 2011 of bystander-effect research found that taking into account different research designs, an effect could only be seen in non-dangerous situations (where there was a low risk of actual harm). https://t.co/H2ouYQFam3 /8
All mentions
Bystander Effect: Factors Influencing Emergency Help Behavior
Today discusses the bystander effect, highlighting how the presence of others usually decreases helping behavior. The meta-analysis reveals that danger levels and physical costs influence intervention, with heightened…
Understanding the Bystander Effect and Factors Influencing Help Behavior
This video explores the bystander effect, highlighting how the presence of others influences helping behavior in emergencies. It discusses factors like danger level and physical costs that impact intervention, supported…
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@thisisnanaadjoa up until 2011, the last systematic review of bystander research had been published in 1981 and was not a quantitative meta-analysis in the modern sense. there’s so much more nuance to it than what people make it to be. https://t.co/RHqC0ofGX3 https://t.co/LQloaaonwd https://t.co/NANvwaWuLK
RT @AsadaHirofumi88: @teritamadozo こんなんどうでしょう?エビデンス重視の人には刺さるかも。 人数が多いと責任が拡散し、誰も行動しなくなる「傍観者効果」が発生する。10人いれば誰かが、ではなく、10人いるから誰も気づかない。 https://…
RT @AsadaHirofumi88: @teritamadozo こんなんどうでしょう?エビデンス重視の人には刺さるかも。 人数が多いと責任が拡散し、誰も行動しなくなる「傍観者効果」が発生する。10人いれば誰かが、ではなく、10人いるから誰も気づかない。 https://…
RT @AsadaHirofumi88: @teritamadozo こんなんどうでしょう?エビデンス重視の人には刺さるかも。 人数が多いと責任が拡散し、誰も行動しなくなる「傍観者効果」が発生する。10人いれば誰かが、ではなく、10人いるから誰も気づかない。 https://…
@teritamadozo こんなんどうでしょう?エビデンス重視の人には刺さるかも。 人数が多いと責任が拡散し、誰も行動しなくなる「傍観者効果」が発生する。10人いれば誰かが、ではなく、10人いるから誰も気づかない。 https://t.co/CynsKLD0YB
The bystander-effect: a meta-analytic review on bystander intervention in dangerous and non-dangerous emergencies. https://t.co/ZtWzX3OliF
@JustBeingDandy @PaulEmbery Interesting, but that study does not prove the by-stander effect is a myth (the headline is misleading). These 105 studies prove that it is real: https://t.co/s3sNSVJaRG
@squarelywaiter @PaulEmbery https://t.co/s3sNSVJaRG
@JustBeingDandy @PaulEmbery Here's a meta-analysis (statistical integration) of 105 studies of the bystander effect conducted between the 1960s and the 2000s. It's a robust effect. https://t.co/s3sNSVJaRG
@Swiss____Tony @JustBeingDandy @PaulEmbery Hi troll. Here is a statistical summary of 105 studies of the by-stander effect conducted between the 1960s and the present day. https://t.co/3VpyF1FsfX
@MPscabsOUT @PaulEmbery Here's a meta-analysis of 105 studies of the by-stander phenomenon, conducted between the 1960s and the present day. It's a robust, much-repeated effect - the more people watching, the less likely people are to intervene. https://t.co/3VpyF1FsfX
برای مطالعه بیشتر : https://t.co/AIBrySALxM
@Enroweb il y a au contraire un petit effet qui est démontré par cette meta-analyse (fischer et al 2011), https://t.co/V1jqr89CeV , l'abstract montre que l'analyse est plus complexe que ce que postulait Darley, ça dépend beaucoup des situations et des variables.
@strawberreli @KartGarfunkel @femboyanc0m @RndmStreetMedic [Remainder of citation from previous comment.] Psychological Bulletin, 137(4), 517–537. https://t.co/6oCvPtz22D
@strawberreli @KartGarfunkel @femboyanc0m @RndmStreetMedic Fischer, P., Krueger, J. I., Greitemeyer, T., Vogrincic, C., Kastenmüller, A., Frey, D., Heene, M., Wicher, M., & Kainbacher, M. (2011). The bystander-effect: A meta-analytic review on bystander intervention in dangerous and non-dangerous emergencies. [citation too long]
RT @RamonNogueras: y si alguien sabe lo que hay que hacer, lo cual a menudo sucede. Esto no falsea los resultados de Latané y Darley pero s…
RT @RamonNogueras: y si alguien sabe lo que hay que hacer, lo cual a menudo sucede. Esto no falsea los resultados de Latané y Darley pero s…
RT @RamonNogueras: y si alguien sabe lo que hay que hacer, lo cual a menudo sucede. Esto no falsea los resultados de Latané y Darley pero s…
y si alguien sabe lo que hay que hacer, lo cual a menudo sucede. Esto no falsea los resultados de Latané y Darley pero sí pasa una cosa: que cuando se revisa la evidencia de este efecto, pues no es tan claro como parece. https://t.co/90gdIcc0Nm
RT @GiovanniFanfoni: @ChiaraSegalina @cliobix @alesaura L'effetto spettatore https://t.co/KZFMZaF0JS è stato dimostrato in più occasioni ht…
RT @GiovanniFanfoni: @ChiaraSegalina @cliobix @alesaura L'effetto spettatore https://t.co/KZFMZaF0JS è stato dimostrato in più occasioni ht…
RT @GiovanniFanfoni: @ChiaraSegalina @cliobix @alesaura L'effetto spettatore https://t.co/KZFMZaF0JS è stato dimostrato in più occasioni ht…
@ChiaraSegalina @cliobix @alesaura L'effetto spettatore https://t.co/KZFMZaF0JS è stato dimostrato in più occasioni https://t.co/0tGeOvFYOE e tende ad attenuarsi quanto più gli spettatori si conoscono, è identificabile il colpevole della situazione di emergenza, è chiara l'emergenza
A meta-analysis in 2011 of bystander-effect research found that taking into account different research designs, an effect could only be seen in non-dangerous situations (where there was a low risk of actual harm). https://t.co/H2ouYQFam3 /8
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
RT @rcbregman: A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and byst…
A 2011 meta-analysis even found that there's a 'reverse bystander effect'. When the situation is life-threatening and bystanders can communicate with each other 'additional bystanders even lead to more, rather than less, helping.' https://t.co/8319gZ31sH
@ScotlandYardCSI This presents an outdated view of the bystander effect. First, the effect does not generalize to dangerous emergencies: https://t.co/cq8lBC1TIn. Second, in most public emergencies someone will intervene to help: https://t.co/y0yrYfCgxn
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