TABLE 2.

Means and Effect Sizes for Main Effects of Expectancy and Drug Manipulations for Cigarette Ratings

	Instructed					Received
	THC		Placebo			THC		Placebo
	M	(SD)	M	(SD)	Effect Size	M	(SD)	M	(SD)	Effect Size
Taste	1.46	1.39	1.02	1.28	.02	1.62	1.42	0.86	1.16	.09**
Smell	1.61	1.17	1.09	1.07	.05*	1.55	1.23	1.14	1.02	.04*
Similarity	1.05	1.21	0.56	0.95	.06**	1.25	1.31	0.37	0.62	.20***
Potency	2.07	0.92	0.96	1.21	.31***	2.21	1.06	0.82	0.91	.41***
THC content	1.55	0.69	0.51	0.78	.38***	1.35	0.97	0.70	0.68	.19***
Satisfaction	1.93	1.29	0.96	1.24	.13***	1.91	1.34	0.98	1.20	.18***
Liking	1.93	1.33	1.07	1.28	.11***	1.95	1.37	1.05	1.23	.17***
Feel better	1.54	1.23	0.82	1.15	.12***	1.60	1.27	0.77	1.07	.14**

Note. Means (SD) are from Tl postsmoking assessment for all variables except for Potency and THC content ratings completed at T2. Effect sizes for expectancy and drug between-subject effects are indicated as partial η² from 2 (Tl and T2) × 2 (Drug) × 2 (Expectancy) repeated measures analyses of variance. There were no significant interaction effects with time or drug × expectancy, except for taste: expectancy by time, F(1, 110) = 4.34, p < .05, with higher T2 than Tl ratings in the Told THC vs. Placebo.

^*p < .05.

^**p < .01.

^***p < .001.