Table 2.

SPS Global Score, ASI-LT/ASI-30, and correlation coefficients.

	Sample 1					Sample 2
	ASI-LT			ASI-30		ASI-LT		ASI-30
	Alcohol	Cannabis	Tobacco	Alcohol	Cannabis	Alcohol	Methamphetamine
n	56	64	64	55	62	66	86
SPS (SD)	74.32(8.99)	74.56(8.69)	73.77(9.23)	74.62 (9.4)	74.56(9.07)	67.63(11.94)	67.85 (11.80)
ASI-LT/30 (SD)	0.441(0.20)	0.384 (0.19)	0.497 (0.20)	0.484(0.37)	0.633 (0.37)	0.268(0.18)	0.398 (0.33)	0.235 (0.16)
SPS:ASI (rs)	−0.270⁎	−0.392⁎⁎	−0.259⁎	0.313⁎	0.070	0.175	0.063	−0.284⁎⁎

ASI-30: average # days used in past 30 days/30; ASI-LT: average # years over lifetime used ≥3 times per week/average age in years; r_s: Spearman's rank correlation coefficient; SD: standard deviation; SPS: Social Provisions Scale.

^⁎p < 0.05.

^⁎⁎p < 0.01.