Table 2.

Study 1 physiological and subjective measures.

Measure	Placebo v. THC Fa, p	7.5 mg v. 15 mg F, p
Heart rate	36.1, <0.001b, η2c=0.44	26.5, <0.001b, η2=0.36
Mean arterial pressure	ns	ns
DEQ
“Feel”	30.0, <0.001b, η2=0.58	15.0, 0.001d, η2=0.41
“Like”	25.3, <0.001b, η2=0.54	ns
“Dislike”	11.4, 0.003d, η2=0.34	10.3, 0.004d, η2=0.32
“High”	35.0, <0.001b, η2=0.61	10.4, 0.004, η2=0.32
“Want more”	ns	6.2, 0.020d, η2=0.22
ARCI Marijuana Scale, mean (SEM)	31.2, <0.001b, η2=0.59	9.7, 0.005d, η2=0.31

ANOVA: analysis of variance; ARCI: Addiction Research Center Inventory; DEQ: Drug Effects Questionnaire; SEM: standard error of the mean; THC: Δ⁹-tetrahydrocannabinol.

^aF statistic and p-value from Bonferroni corrected repeated measures ANOVA with Helmert contrasts drug condition*time interaction;

^bsignificant at α=0.0025;

^cpartial eta squared;

^dsignificant at α=0.025,