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. 2010 Jun 14;107(26):11733–11738. doi: 10.1073/pnas.1000690107

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Fig. 4. — Effect on Woodcock-Johnson Applied Problems scores of a recent homicide occurring within the block group, census tract, or neighborhood cluster, respectively, among African-Americans in the Three City Study Chicago sample. Coefficient values are shown for all block group estimates and for significant estimates at all levels. Sample sizes: Block group estimates are based on 341 assessments among 176 respondents; census tract and neighborhood cluster estimates are based on 347 assessments among 179 respondents. **P < 0.05; *P < 0.10; ***P < 0.01.