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The Effects of Sanction Intensity on Criminal Conduct - JDAI Helpdesk

The Effects of Sanction Intensity on Criminal Conduct - JDAI Helpdesk

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Frequency <str<strong>on</strong>g>of</str<strong>on</strong>g> Recidivism (Violent Offenses, 2-Year Follow-Up, Original Table 2.8)<br />

Zero-Inflated Negative Number <str<strong>on</strong>g>of</str<strong>on</strong>g> observati<strong>on</strong>s = 1,559<br />

Binomial Regressi<strong>on</strong> N<strong>on</strong>zero observati<strong>on</strong>s = 77<br />

Zero observati<strong>on</strong>s = 1,482<br />

Inflati<strong>on</strong> model = logit Likelihood Ratio χ 2 (9 d.f.) = 5.20<br />

Log likelihood = -509.488 Pr > χ 2 = .817<br />

Full Model<br />

Incidence<br />

Rate Ratio<br />

S.E. z p<br />

Treatment group .93 .218 -.32 .748<br />

West probati<strong>on</strong> regi<strong>on</strong> .95 .288 -.18 .858<br />

Male 1.05 .373 .13 .894<br />

White 1.03 .326 .09 .928<br />

Age at RA .99 .015 -.75 .452<br />

Income $20,000-$29,999 1.64 .725 1.12 .263<br />

Income $30,000-$39,999 1.18 .681 .28 .779<br />

Income $40,000 or more 1.02 .642 .04 .969<br />

M<strong>on</strong>thly <str<strong>on</strong>g>of</str<strong>on</strong>g>fending rate 1 year<br />

pre-RA (charged violent <str<strong>on</strong>g>of</str<strong>on</strong>g>f.)<br />

.48 .263 -1.34 .181<br />

Inflated Model b S.E. z p<br />

Treatment group .133 .243 .55 .584<br />

West probati<strong>on</strong> regi<strong>on</strong> .396 .292 1.36 .175<br />

Male -1.340 .351 -3.82 .000<br />

White -.034 .300 -.11 .909<br />

Age at RA .034 .013 2.69 .007<br />

Income $20,000-$29,999 .517 .418 1.24 .216<br />

Income $30,000-$39,999 .918 .461 1.99 .047<br />

Income $40,000 or more 1.533 .553 2.77 .006<br />

M<strong>on</strong>thly <str<strong>on</strong>g>of</str<strong>on</strong>g>fending rate 1 year<br />

pre-RA (charged violent <str<strong>on</strong>g>of</str<strong>on</strong>g>f.)<br />

-1.198 .871 -1.38 .169<br />

C<strong>on</strong>stant 1.577 .734 2.15 .032<br />

Ln(Alpha) -.216 .283 -.76 .445<br />

Alpha .806 .228<br />

Vu<strong>on</strong>g test <str<strong>on</strong>g>of</str<strong>on</strong>g> zero-inflated vs. standard negative binomial: z = 3.95, p < .001.<br />

224

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