Table 2.

Partial Correlations among Motives Change Scores and Cannabis Outcomes

	6 Months			9 Months			12 Months			15 Months
Motive Change	Use	MPI	CUD	Use	MPI	CUD	Use	MPI	CUD	Use	MPI	CUD
ΔAlcohol	−0.02	0.39**	0.15*	0.20**	0.37**	0.15*	0.20**	0.43**	0.23**	0.24**	0.45**	0.29**
ΔAltered Perception	0.30**	0.37**	0.23**	0.40**	0.46**	0.29**	0.50**	0.49**	0.32**	0.42**	0.53**	0.37**
ΔSocial Anxiety	0.27**	0.37**	0.28**	0.36**	0.45**	0.29**	0.36**	0.49**	0.34**	0.37**	0.53**	0.39**
ΔAvailability	0.20**	0.36**	0.21**	0.24**	0.46**	0.30**	0.38**	0.53**	0.33**	0.34**	0.54**	0.33**
ΔBoredom	0.27**	0.38**	0.33**	0.36**	0.42**	0.32**	0.49**	0.55**	0.40**	0.37**	0.55**	0.44**
ΔCelebration	0.19**	0.29**	0.19**	0.23**	0.33**	0.13*	0.38**	0.48**	0.23**	0.40**	0.45**	0.27**
ΔConformity	0.20**	0.48**	0.30**	0.29**	0.44**	0.24**	0.35**	0.57**	0.14*	0.35**	0.60**	0.38**
ΔCoping	0.26**	0.54**	0.36**	0.36**	0.54**	0.34**	0.40**	0.57**	0.32**	0.33**	0.58**	0.38**
ΔEnjoyment	0.29**	0.35**	0.24**	0.36**	0.49**	0.32**	0.44**	0.50**	0.31**	0.42**	0.44**	0.30**
ΔExperimentation	0.26**	0.45**	0.21**	0.39**	0.42**	0.30**	0.38**	0.47**	0.29**	0.33**	0.47**	0.34**
ΔSleep	0.27**	0.34**	0.33**	0.31**	0.47**	0.30**	0.37**	0.49**	0.30**	0.30**	0.57**	0.34**
ΔRelative Low Risk	0.25**	0.30**	0.19**	0.30**	0.34**	0.17*	0.41**	0.42**	0.34**	0.34**	0.44**	0.27**

Δ. Change in motives from corresponding follow-up being predicted minus baseline. Note: analyses control for baseline level of outcome variable. Positive scores indicate reduction in motives were associated with a reduction in outcomes.

MPI = cannabis problems, CUD = cannabis use disorder symptoms;

^**p<.01;

^*p<.05