. Author manuscript; available in PMC: 2010 Apr 1.

Published in final edited form as: Eval Rev. 2008 Nov 24;33(2):138–158. doi: 10.1177/0193841X08326463

Table 3.

Reports of Others’ Drug and Sexual Behaviors, Encouragement, and Drug Expectancies by Mixed-Mode Assignment

	In-person first n = 178 %	Web first n = 181 %	P
Single items
Family member has drinking problem	16.0	23.9	.072
Boy/girlfriend/spouse has drinking/drug problem	8.5	5.9	.722
Multiple-item measures	M (SD)	M (SD)
Boy/girlfriend/spouse's drug use	1.67 (0.69)	1.64 (0.68)	.863
Peer drug use	2.11 (0.90)	2.12 (0.89)	.919
Peer sexual behavior	1.88 (0.90)	1.82 (0.77)	.396
Peer encouragement of drug use and sex	1.38 (0.54)	1.49 (0.60)	.193
Alcohol expectancies	2.68 (0.55)	2.65 (0.68)	.984
Marijuana expectancies	2.72 (0.59)	2.66 (0.65)	.444

Notes: ^* p < .05. Significance levels of comparisons by mixed-mode condition assessed by logistic or linear regression models that adjusted for gender, living at home with parents or not, and previous report of behavior when available on the spring 2004 survey. Means and standard deviations are from unadjusted estimates.