Table 2 Variables added to the extracted information
Codename | Explanation |
|---|---|
IV_label | Generalization of independent variable name |
variable category | Kinematics, exogenous, human involvement, incident characteristics, innovation, police strategies |
variable subcategory | Day of the week, demand, road type, time of day, traffic, weather type, caller characteristics, community characteristics, victim characteristics, witness characteristics, incident characteristics, incident type, AGDS, AVL, emergency button, response unit type, travel distance, travel speed, call priority, department size, differential response system, jurisdiction area, no. officers per response unit, non-emergency number, on duty officers, patrol strategy, shift, workload |
Regression type | Simple or multiple |
Effect direction |  +/-/none (for nominal and dichotomous predictor variables always none) |
Effect size interpretation | Very small, small, medium, large (see Appendix D) |
Statistical significance | */**/***/non-applicable (i.e. population data) |
Internal validity | Level I to V (see section Critical appraisal of research methodologies) |