Purpose
To examine whether various data structures, visualizations, and “nudges” impact police leader’s (lieutenant and above) strategic crime prevention decisions.
Methods
We utilized a multi-armed survey experiment in which police leaders (N = 1195) were randomly assigned various data visuals and “nudges” to investigate their impact on police leader’s decision-making intentions.
Results
When police leaders were presented process behavioral charts and hot spot street segment maps, they more accurately identified jurisdictional crime trends and high crime areas, respectively. However, when presented with kernel density maps compared to hot spot maps, police leaders were not influenced by data visuals and no more likely to respond to crime problems with empirically promising evidence-based practices.
Conclusions
This study highlights the value of data presentation and visualizations in how data is presented (e.g., charts, maps) influences police leaders’ decision-making. Data analysts should present refined (micro-unit) data visuals to avoid misappropriating police resources in areas where police resources may not be heavily needed. Further, process behavioral charts provide realistic variations in jurisdictional crime trends, which were clearly interpreted by police leaders. Police researchers should consistently keep police leaders apprised of “what works, what doesn’t, what’s promising,” while police leaders should engage with data/research and consider implementing evidence-based practices.
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