Table 1.

Descriptive Statistics for Continuous Covariates and Alcohol Use Outcomes (Quantity of Use Among Users)

Variable	M	SD	Skewness	Kurtosis	α
Activity level (Time1)	1.40	0.71	0.14	−0.48	.71
Approach (Time 1)	1.63	0.67	−0.18	−0.17	.66
Social problems (Time 1)	0.35	0.34	1.28	1.52	.69
Self-worth (Time 1)	4.62	0.90	−0.71	0.23	.77
Ethanol in grams/10
Time 1	2.19	1.56	0.99	0.20
Time 2	2.50	2.31	1.07	0.67
Time 3	3.29	2.82	1.11	0.92
Time 4	4.94	3.79	0.88	−0.02

Note. Observed means for ethanol in grams/10 were computed for those using alcohol at the current time point and having no missing data, resulting in the following sample sizes: Time 1, n = 602; Time 2, n = 555; Time 3, n = 592; Time 4, n = 659. Observed means for covariates are based on the full sample (N = 1,484).