Peter Ejbye-Ernst
Biographic Data
| ID | 301750 |
|---|---|
| NAME | Peter Ejbye-Ernst |
| GIVEN NAMES | Peter |
| FAMILY NAME | Ejbye-Ernst |
| SIGNATURE | EJBYE-ERNST P |
| AFFILIATIONS | Netherlands Institute for the Study of Crime and Law Enforcement |
| ORCID | 0000-0003-4598-7235 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 17 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
From a single punch to weapon use
Public place violence has been linked to nighttime economy settings and intoxicated male strangers but it remains understudied what other types of violence are also found in public. In addressing this gap, we apply latent class analysis to develop an inductive event typology of public place violence based on analysis of 500 police reported public assaults from Copenhagen, Denmark. Five event-types of public violence are identified. In addition to…
The Suspicious Porn Consumer
Little is known about situations where pornography users draw the line between harmful and pleasurable online sexual images. In 2022, using unique empirical material consisting of 839 reports to child sexual abuse hotlines in Denmark and Belgium, we investigated what internet users report as harmful. We found that one-third of the material reported by these digital bystanders is child sexual abuse by legal standards. Through analysis of the remai…
Guidelines for reporting research using systematic coding of observed human behaviour (SCOBe)
Systematic coding of observed human behaviour (SCOBe) is used across disciplines and topics but methodological reporting is often incomplete. We developed internationally generated, interdisciplinary guidelines for methodological reporting of such research. Using Delphi methodology, a working group of 22 experts sought group consensus in three rounds. Participants first assessed an initial set of reporting criteria (round 1). Next, in interactive…
Consolation in the aftermath of violent public assaults
Animal ethologists suggest that non-human primates console victims of aggression in a manner similar to humans. However, the empirical basis for this cross-species comparison is fragile, given that few studies have examined consolation behavior among humans. To address this gap, we revive and apply the underappreciated ethological branch of micro-sociology, which advocates the study of human interactions by applying ethological observation techni…
Does Third-Party Intervention Matter? A Video-Based Analysis of the Effect of Third-Party Intervention on the Continuation of Interpersonal Conflict Behaviour
The article investigates whether third-party intervention influences the continuation of antagonist conflict behaviour in interpersonal conflicts. The analysis is based on a systematic coding of video footage of real-life conflicts from the streets of Amsterdam. A panel data analysis shows that intervention leads to discontinuation of conflict behaviour. The analysis furthermore finds that while physically forceful intervention stops conflict beh…
A CCTV-based analysis of target selection by guardians intervening in interpersonal conflicts
Guardians are a potential resource of conflict de-escalation but we still know little about their actual behaviour. In this article we investigate whom among the antagonists a guardian selects as a target when they intervene in an interpersonal conflict. We investigate this using CCTV footage from Amsterdam (the Netherlands) of 46 interpersonal conflicts in public spaces involving 641 interventions by 176 individuals. We find that guardians are m…
How to stop a fight—A qualitative video analysis of how third-parties de-escalate real-life interpersonal conflicts in public
Objective: While previous research agrees that third-parties often manage to de-escalate interpersonal conflicts when they intervene, we still know little about how they achieve this influence. The aim of the present study is to address this gap in the literature by investigating how third-parties de-escalate conflicts. Method: We conduct a two-part qualitative analysis of closed-circuit television (CCTV) footage of 48 real-life conflicts from th…
Intervention or Involvement
Little is known about how bouncer–patron interactions may influence a bouncer’s use of physical aggression. To address this gap, we offer a micro-interactional analysis examining real-life aggressive bouncer behavior captured by venue surveillance cameras. Quantitative results show that bouncer physical aggression is associated with interactions in which bouncers are directly involved as a conflict party, but not with interactions where they sole…
Social relations and presence of others predict bystander intervention
Are individuals willing to intervene in public violence? Half a century of research on the “bystander effect” suggests that the more bystanders present at an emergency, the less likely each of them is to provide help. However, recent meta‐analytical evidence questions whether this effect generalizes to violent emergencies. Besides the number of bystanders present, an alternative line of research suggests that pre‐existing social relations between…
What is the purpose? Caseworkers’ perception of performance information
Caseworkers in welfare organisations play a pivotal part in the production of performance information (PI), since the information they record determines the quality of the PI. Previous studies have demonstrated how tasks that are considered illegitimate are stressful for the professionals performing them and are not performed properly. Caseworkers’ perception of the PI, which their recordings feed into, must therefore be of great importance with …
Social relations and presence of others predict bystander intervention
Are individuals willing to intervene in public violence? Half a century of research on the “bystander effect” suggests that the more bystanders present at an emergency, the less likely each of them is to provide help. However, recent meta‐analytical evidence questions whether this effect generalizes to violent emergencies. Besides the number of bystanders present, an alternative line of research suggests that pre‐existing social relations between…
How to stop a fight—A qualitative video analysis of how third-parties de-escalate real-life interpersonal conflicts in public
Objective: While previous research agrees that third-parties often manage to de-escalate interpersonal conflicts when they intervene, we still know little about how they achieve this influence. The aim of the present study is to address this gap in the literature by investigating how third-parties de-escalate conflicts. Method: We conduct a two-part qualitative analysis of closed-circuit television (CCTV) footage of 48 real-life conflicts from th…
Consolation in the aftermath of violent public assaults
Animal ethologists suggest that non-human primates console victims of aggression in a manner similar to humans. However, the empirical basis for this cross-species comparison is fragile, given that few studies have examined consolation behavior among humans. To address this gap, we revive and apply the underappreciated ethological branch of micro-sociology, which advocates the study of human interactions by applying ethological observation techni…
Does Third-Party Intervention Matter? A Video-Based Analysis of the Effect of Third-Party Intervention on the Continuation of Interpersonal Conflict Behaviour
The article investigates whether third-party intervention influences the continuation of antagonist conflict behaviour in interpersonal conflicts. The analysis is based on a systematic coding of video footage of real-life conflicts from the streets of Amsterdam. A panel data analysis shows that intervention leads to discontinuation of conflict behaviour. The analysis furthermore finds that while physically forceful intervention stops conflict beh…
Intervention or Involvement
Little is known about how bouncer–patron interactions may influence a bouncer’s use of physical aggression. To address this gap, we offer a micro-interactional analysis examining real-life aggressive bouncer behavior captured by venue surveillance cameras. Quantitative results show that bouncer physical aggression is associated with interactions in which bouncers are directly involved as a conflict party, but not with interactions where they sole…
What is the purpose? Caseworkers’ perception of performance information
Caseworkers in welfare organisations play a pivotal part in the production of performance information (PI), since the information they record determines the quality of the PI. Previous studies have demonstrated how tasks that are considered illegitimate are stressful for the professionals performing them and are not performed properly. Caseworkers’ perception of the PI, which their recordings feed into, must therefore be of great importance with …
Social relations and presence of others predict bystander intervention
Are individuals willing to intervene in public violence? Half a century of research on the “bystander effect” suggests that the more bystanders present at an emergency, the less likely each of them is to provide help. However, recent meta‐analytical evidence questions whether this effect generalizes to violent emergencies. Besides the number of bystanders present, an alternative line of research suggests that pre‐existing social relations between…
Intervention or Involvement
Little is known about how bouncer–patron interactions may influence a bouncer’s use of physical aggression. To address this gap, we offer a micro-interactional analysis examining real-life aggressive bouncer behavior captured by venue surveillance cameras. Quantitative results show that bouncer physical aggression is associated with interactions in which bouncers are directly involved as a conflict party, but not with interactions where they sole…
How to stop a fight—A qualitative video analysis of how third-parties de-escalate real-life interpersonal conflicts in public
Objective: While previous research agrees that third-parties often manage to de-escalate interpersonal conflicts when they intervene, we still know little about how they achieve this influence. The aim of the present study is to address this gap in the literature by investigating how third-parties de-escalate conflicts. Method: We conduct a two-part qualitative analysis of closed-circuit television (CCTV) footage of 48 real-life conflicts from th…
A CCTV-based analysis of target selection by guardians intervening in interpersonal conflicts
Guardians are a potential resource of conflict de-escalation but we still know little about their actual behaviour. In this article we investigate whom among the antagonists a guardian selects as a target when they intervene in an interpersonal conflict. We investigate this using CCTV footage from Amsterdam (the Netherlands) of 46 interpersonal conflicts in public spaces involving 641 interventions by 176 individuals. We find that guardians are m…
Does Third-Party Intervention Matter? A Video-Based Analysis of the Effect of Third-Party Intervention on the Continuation of Interpersonal Conflict Behaviour
The article investigates whether third-party intervention influences the continuation of antagonist conflict behaviour in interpersonal conflicts. The analysis is based on a systematic coding of video footage of real-life conflicts from the streets of Amsterdam. A panel data analysis shows that intervention leads to discontinuation of conflict behaviour. The analysis furthermore finds that while physically forceful intervention stops conflict beh…
Consolation in the aftermath of violent public assaults
Animal ethologists suggest that non-human primates console victims of aggression in a manner similar to humans. However, the empirical basis for this cross-species comparison is fragile, given that few studies have examined consolation behavior among humans. To address this gap, we revive and apply the underappreciated ethological branch of micro-sociology, which advocates the study of human interactions by applying ethological observation techni…
Guidelines for reporting research using systematic coding of observed human behaviour (SCOBe)
Systematic coding of observed human behaviour (SCOBe) is used across disciplines and topics but methodological reporting is often incomplete. We developed internationally generated, interdisciplinary guidelines for methodological reporting of such research. Using Delphi methodology, a working group of 22 experts sought group consensus in three rounds. Participants first assessed an initial set of reporting criteria (round 1). Next, in interactive…
From a single punch to weapon use
Public place violence has been linked to nighttime economy settings and intoxicated male strangers but it remains understudied what other types of violence are also found in public. In addressing this gap, we apply latent class analysis to develop an inductive event typology of public place violence based on analysis of 500 police reported public assaults from Copenhagen, Denmark. Five event-types of public violence are identified. In addition to…
The Suspicious Porn Consumer
Little is known about situations where pornography users draw the line between harmful and pleasurable online sexual images. In 2022, using unique empirical material consisting of 839 reports to child sexual abuse hotlines in Denmark and Belgium, we investigated what internet users report as harmful. We found that one-third of the material reported by these digital bystanders is child sexual abuse by legal standards. Through analysis of the remai…
Psychology (8 works) · Social Psychology (6 works) · Political science (5 works) · Computer Science (4 works) · Poison control (4 works) · Social Psychology (4 works) · Criminology (3 works) · Human Factors and Ergonomics (3 works) · Interpersonal communication (3 works) · Psychiatry (3 works)