Table 3.

Multilevel Models Testing two-way Interactions between Substance Use and Relational Risk Factors in Adolescence and Young Adulthood for Physical Aggression Involvement

	Adolescence (Waves 1–3)	Young Adulthood (Waves 4–7)
Conflict
Intercept (β0)	1.32 (.06)	1.21 (.08)
Age (β1)	−0.00 (.02) [−.00]	−0.01 (.02) [−.01]
Substance use (β2)	0.06 (.04) [.09] *	0.03 (.03) [.03]
Conflict (β3)	0.16 (.03) [.29] ***	0.14 (.02) [.14] ***
Conflict X Substance Use (β5)	0.06 (.04) [.04]	0.07 (.03) [.12]*
Gender Main Effect (γ01)	0.04 (.04) [−.23]	−0.04 (.04) [−.13]
Jealousy
Intercept (β0)	1.33 (.06)	1.24 (.08)
Age (β1)	0.01 (.02) [.02]	−0.01 (.01) [−.05]
Substance Use (β2)	0.07 (.03) [.10] *	0.04 (.03) [.08]
Jealousy (β3)	0.04 (.02) [.09] †	0.06 (.02) [.17] **
Jealousy X Substance Use (β5)	0.05 (.04) [.07]	0.07 (.03) [.11]*
Gender Main Effect (γ01)	−0.06 (.04) [−.24]	−0.02 (.04) [−.18]

Notes. The primary numbers in the table are the unstandardized coefficients for the fixed effects. Standard errors are in parentheses. Standardized coefficients are in brackets.

^†p < .10;

^*p < .05;

^**p < .01;

^***p < .001.