Table 1.

Descriptive Statistics of Predictors: Parent–Youth Relationship Quality, Parental Monitoring, and Parent Substance Use

Measure	Mean	SD	Kurtosis	Skew	Min	Max
Youth Report: Parent–Youth Relationship Qualitya	4.34	4.58	0.86	1.27	0	19
Youth Report: Parent Monitoringb	3.20	0.94	1.90	−1.52	0	4
Parent Report: Parent–Youth Relationship Qualitya	4.01	4.65	1.55	1.53	0	19
Parent Report: Parent Monitoringb*	3.74	0.46	21.21	−3.76	0	4
Parent Current Alcohol Usec	1.58	1.72	−1.40	0.43	0	5
Parent Current Binge Drinkingd*	0.38	0.97	12.69	3.36	0	6
Parent Current Marijuana Usec*	0.17	0.83	23.48	4.95	0	5

^aScale: 0 = false, 1 = true; 20 items are summed (maximum value = 20).

^bScale: 0 = never or almost never, 1 = sometimes, 2 = about half the time, 3 = often, 4 = always or almost always; average across 7 items.

^cScale: 0 = not currently using, 1 = less than once a year, 2 = some each year, 3 = some each month, 4 = some each week, and 5 = some each day.

^dScale for number of days in the past year: 0 = zero days, 1 = 1–2 days, 2 = 3–9 days; 3 = 10–19 days, 4 = 20–39 days, 5 = 40–59 days, and 6 = 60 or more days.

^*Data transformation was performed on these variables due to high kurtosis and skew.