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 Z-Score per Productive Time (Z-PRO) Formula

Description
              *From the article "The IMPACTT of a Patrol Officer: Evaluating Productivity Metrics," July 13, 2020.*

*A*= an officer’s z-score for selectives, *B =*an officer’s z-score for traffic warnings, *C*= an officer’s z-score for traffic citations, *D* = an officer’s z-score for warrant arrests, *E* = an officer’s z-score for misdemeanor arrests, and *F* = an officer’s z-score for felony arrests. This value can be expressed as *N. O =*absolute value of *N* * (1 − prosecution rate). This value is then rated on a scale of 1 to 100 with measuring increments of 0.1. *G* = total on-duty minutes, *H* = calls for service minutes, *I* = follow-up time and meetings, *J*= officer assist time, *K*= number of incident reports, *L* = number of additional case information reports, and *M* = number of information or intelligence reports. All outputs are annual totals.

Source: Officer Luke Bonkiewicz, Lincoln (NE) Police Department, "The IMPACTT of a Patrol Officer: Evaluating Productivity Metrics," July 13, 2020, nij.ojp.gov:
https://nij.ojp.gov/topics/articles/impactt-patrol-officer-evaluating-productivity-metrics
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