Table 1.

Exploratory factor analysis: Four factors of simultaneous alcohol and marijuana (SAM) use motives

	Conformity	Positive effects	Calm/Coping	Social
Because others are doing it	.60	.03	−.17	.14
Pressure from others	.88	.01	.00	−.08
Looking for a new experience	.41	.22	.11	−.04
So I won't feel left out	.78	.03	−.03	.06
To fit in with a group I like	.87	.03	−.06	−.04
Because my friends pressure me to use	.85	−.13	.04	.02
So that others won't kid me about not using	.72	−.03	.22	−.08
To be liked	.67	−.06	.00	.10
To increase intoxication	.09	.66	−.03	−.02
Cross-faded effects are better	−.04	.87	−.05	−.07
To get a better high	−.02	.79	.03	.05
To get to a greater altered state	−.10	.57	.06	.16
To increase the positive effects I get from alcohol	−.03	.68	.11	.00
To increase the positive effects I get from marijuana	−.05	.74	.07	.00
To help me sleep	−.02	−.04	.66	.00
To calm me down	.00	.05	.77	.05
To cope with anxiety	−.08	.06	.66	.13
Because it makes a social gathering more enjoyable	.05	.32	−.16	.55
Because it is customary on special occasions	−.01	−.07	.15	.70
To be sociable	.17	.12	−.09	.59
Because it is what most of my friends do when we get together	.28	.06	.11	.41
As a way to celebrate	−.06	−.05	.11	.64
Because of boredom	.11	.19	.33	.02
To offset the negative effects I get from alcohol	.10	.21	.32	−.11
To offset the negative effects I get from marijuana	.23	.20	.14	.01
Using marijuana helps me to drink more alcohol	.16	.36	.13	.01

Note. Bolded standardized regression coefficients from the rotated factor pattern indicate that the item loaded .40 or higher. Factors were allowed to correlate. N = 286.