Table 2.

Correlation matrix (Pearson) of predictors and substance use outcomes across all observations and time points

			Past Year Substance Use		PAE	Peer Use		Coping Strategies		UPPS-P
	age	FH Alc	Alcohol days	Cannabis Days	Positive Expectancies	PeerDrink	PeerCan	Cognitive Restructuring	Emotion Regulation	Sensation Seeking	Negative Urgency	Lack of Perseverance
Age	--	−0.01	0.37**	0.12**	0.13**	0.48**	0.22**	0.02	−0.01	−0.08*	−0.09*	−0.09*
FH Alc	−0.01	--	−0.01	0.04	0.04	0.03	0.07	0.00	−0.01	0.00	0.06*	0.01
Alcohol Days	0.37**	−0.01	--	0.29**	0.23**	0.45**	0.33**	0.01	−0.03	0.07*	−0.02	−0.02
Cannabis Days	0.12**	0.04	0.29**	--	0.13**	0.25**	0.42**	−0.01	−0.08*	0.11**	0.05	0.03
PAE	0.13**	0.04	0.23**	0.13**	--	0.32**	0.27**	0.05	−0.04	0.14**	0.19**	0.07*
PeerDrink	0.48**	0.03	0.45**	0.25**	0.32**	--	0.71**	0.03	−0.02	0.12**	0.02	0.02
PeerCan	0.22**	0.07	0.33**	0.42**	0.27**	0.71**	--	0.04	−0.05	0.17**	0.11**	0.05
Cog. Rest.	0.02	0.00	0.04	0.02	0.05	0.03	0.04	--	0.51**	0.11**	−0.07*	−0.12**
Emo. Reg.	−0.01	−0.01	−0.03	−0.08**	−0.04	−0.02	−0.05	0.51**	--	0.04	−0.09*	−0.20**
SS	−0.08*	0.00	0.07*	0.11**	0.14**	0.12**	0.17**	0.11**	0.04	--	0.15**	0.09*
NU	−0.09*	0.06*	−0.02	0.05	0.19**	0.02	0.11**	−0.07*	−0.09**	0.15**	--	0.12**
PSV	−0.09*	0.01	−0.02	0.03	0.07*	0.02	0.05	−0.12**	−0.20**	0.09*	0.12**	--

Note. PAE = Positive Alcohol Expectancy Scale; Peer Drink = Proportion of peers who drink; PeerCan = Proportion of peers who use cannabis; SS = Sensation Seeking; NU = Negative Urgency; PSV = Lack of Perseverance; FH Alc = Density of family history of alcohol use disorders

^*p < .01

^**p < .001.