. Author manuscript; available in PMC: 2016 Mar 1.

Published in final edited form as: J Consult Clin Psychol. 2016 Jan 4;84(3):238–247. doi: 10.1037/ccp0000067

Table 3.

Effect sizes (d) for Changes in Outcomes by Intervention Condition and Site at 3- and 6-Month Follow-up

	3-month Follow-Up					6-month Follow-Up
	Norms	Drinks Per Week	Drinks Past 30 Days	Freq	YAAPST	Norms	Drinks Per Week	Drinks Past 30 Days	Freq	YAAPST
Sex	0.28^***	0.19^*	0.25^**	0.09	−0.01	0.24^**	0.15	0.25	0.09	0.17
Baseline Outcome	0.97^***	1.58^***	1.20^***	1.12^***	1.52^***	0.97^***	1.36^***	1.20^***	1.12^***	2.01^***
Site 2 vs. Site 1	0.25^**	0.29^***	0.15	0.15	0.02	0.16	0.21^*	0.15	0.15^**	0.22
Site 3 vs. Site 1	0.43^***	0.40^***	0.27^**	0.17	−0.01	0.35^***	0.32^*	0.27^**	0.17^**	0.17
PNF vs. Control	−0.48^***	−0.28^**	−0.21^**	−0.18^*	−0.12	−0.35^***	−0.13	−0.21	−0.18	−0.09
PSCF vs. Control	−0.27^***	−0.21^*	−0.19^*	−0.20^*	−0.13	−0.23^***	−0.03	−0.19	−0.20	0.11
PNF vs. PSCF	0.16	0.19^*	−0.02	0.01	0.02	−0.13	−0.10	−0.11	0.00	−0.15

Note. Freq = frequency; YAAPST = Young Adult Alcohol Problems Screening Test; PNF = Personalized Normative Feedback; PSCF = Personalized Social Comparison Feedback.

p <.05

^**

p < .01

^***

p < .001