Reexamining the Minneapolis Repeat Complaint Address Policing (RECAP) Experiment, 1986-1987

This study reexamines REPEAT COMPLAINT ADDRESS POLICING: TWO FIELD EXPERIMENTS IN MINNEAPOLIS, 1985-1987 (ICPSR 9788). The original Repeat Complaint Address Policing (RECAP) experiment was a field study of the strategy of problem-oriented policing, which used control and treatment groups consisting of specific addresses in the city of Minneapolis. The impact of problem-oriented policing was measured by comparing the number of 911 calls received for each address during a baseline period to the number received during a period when experimental treatments were in effect. Several features of the original data distort the one-to-one correspondence between a 911 call and an event, such as the occurrence of multiple versions of the same call in the databases. The current study identifies and attempts to correct these occurrences by applying multiple levels of data cleaning procedures to the original data to establish a better one-to-one call-to-event correspondence.

本研究重新审视了《重复投诉地址警务：1985-1987年明尼阿波利斯两项实地实验》（ICPSR 9788）。最初的重复投诉地址警务（Repeat Complaint Address Policing，RECAP）实验是一项针对问题导向警务策略的实地研究，该实验采用了由明尼阿波利斯市特定地址组成的对照组和处理组。问题导向警务的影响通过比较每个地址在基线期收到的911呼叫数量与实验处理生效期间收到的数量来衡量。原始数据的若干特征扭曲了911呼叫与事件之间的一一对应关系，例如数据库中同一呼叫存在多个版本的情况。本研究通过对原始数据应用多层次的数据清理程序，识别并尝试纠正这些情况，以建立更优的呼叫与事件一一对应关系。