Journal of Experimental Criminology最新文献

Objectives: There is little scholarship about what affects calls for service, even as they originate the vast majority of police interventions in the USA. We test how racial perceptions, ambiguous situational contexts, and participant demographics affect desire to call the police.

Methods: We conduct a nationwide survey experiment with 2,038 participants, varying vignette racial composition (subjects described as black or white) and seriousness of event (less serious, more ambiguous or more serious, less ambiguous) to test two outcomes: 1) desire to call the police and 2) perceived threat.

Results: Perceived race does not directly affect mean desire to call the police or perceived threat. However, political views moderate the effects of race: compared to politically moderate participants, very liberal participants express less desire to call the police while very conservative participants express more desire to call the police in a vignette featuring young Black men.

Conclusions: The political polarization of desire to call the police raises questions about racially differentiated risk of more serious criminal justice system events, including arrest and incarceration, for racial and ethnic minorities.

Objectives: We sought to examine differences between videotaped and written trial materials on verdicts, perceptions of trial parties, quality check outcomes, perceived salience of racial issues, and emotional states in a trial involving a Black or White defendant.

Hypotheses: We predicted that verdicts and ratings of trial parties would be similar for those participants viewing a videotaped trial and those reading a written transcript. However, we suspected that emotional states might be heightened for those watching a video and that those reading transcripts would perform better on quality checks regarding trial content (but worse on those involving trial party characteristics, including defendant race).

Method: Participants (N = 139 after removing those who did not meet our threshold for data quality) recruited from Amazon's Mechanical Turk were randomly assigned to watch a video or read a transcript of a trial involving an alleged murder of a police officer. They completed a questionnaire probing their verdict, perceptions of trial parties, perceived salience of racial issues, and emotional state, and responded to a series of quality checks.

Results: Participants in the videotape condition performed significantly worse on quality checks than did those in the transcript condition. There were no significant differences between modalities in terms of verdict or perceived salience of racial issues. Some other differences emerged between conditions, however, with more positive perceptions of the pathologist and police officer in the transcript condition, and more negative emotion elicited by the trial involving a White defendant in the videotape condition only.

Conclusions: There were no meaningful differences between videotaped and written trial materials in terms of outcome (verdict), but the presence of some trial party rating and emotional state differences stemming from modality epitomizes the internal/ecological validity trade-off in jury research. Our quality check results indicate that written transcripts may work better for obtaining valid data online. Regardless of modality, researchers must be diligent in crafting quality checks to ensure that participants are attending to the stimulus materials, particularly as more research shifts online.