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Table 4 Recommendations for assessing evidence of crime reduction

From: A simple weighted displacement difference test to evaluate place based crime interventions

\(Z_{\text{WDD}}\) Strength of evidence One tailed p-value
− 1.3 Weak evidence of reduction 0.1
− 1.6 Evidence of reduction 0.05
− 2.3 Strong evidence of reduction 0.01
− 3.1 Very strong evidence of reduction 0.001
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