Table 4.

Neighborhood effects on trajectories of aggression from age 11 to age 18 (reduced moderation and combined main effects models)

	Girls (N = 2565)				Boys (N = 2553)
	Moderation Mode		Main Effects Model		Moderation Model		Main Effects Model
	B	95% CI	B	95% CI	B	95% CI	B	95% CI
Intercept	0.256**	(0.086, 0.424)	0.252**	(0.084, 0.420)	0.346**	(0.166, 0.527)	0.351**	(0.171, 0.532)
Age	0.152**	(0.102, 0.202)	0.151**	(0.102, 0.201)	0.100**	(0.033, 0.168)	0.100**	(0.032, 0.168)
Age-squared	−0.021**	(−0.028, −0.014)	−0.021**	(−0.028, −0.014)	−0.017**	(−0.026, −0.008)	−0.017**	(−0.026, −0.008)
Socioeconomic disadvantage	0.007**	(0.004, 0.010)	0.007**	(0.003, 0.010)	0.003	(−0.001, 0.006)	0.003	(−0.001, 0.006)
Social bonding	0.079	(−0.381, 0.539)	0.022	(−0.427, 0.472)	−0.303	(−0.734, 0.129)	−0.249	(−0.667, 0.168)
Social control	0.063	(−0.086, 0.212)	0.089	(−0.044, 0.222)	0.068	(−0.077, 0.212)	0.032	(−0.092, 0.156)
Disadvantage *bonding	0.020	(−0.036, 0.076)	---		−0.008	(−0.064, 0.047)	---
Disadvantage *control	0.004	(−0.009, 0.016)	---		−0.004	(−0.016, 0.008)	---

Note. CI = confidence interval. Interactions of each neighborhood term with age (to assess impact on linear slope) and with age-squared (to assess impact on quadratic slope) were dropped because they were not statistically significant at the .05 level. All analyses controlled for race/ethnicity, parent education, family structure, the number of times the student moved across the five waves of data collection, the type of address geocoded and the precision of the geocode.

^*p < .05.

^**p < .01.