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. Author manuscript; available in PMC: 2025 Jan 1.
Published in final edited form as: J Subst Use. 2023 Feb 26;29(4):509–516. doi: 10.1080/14659891.2023.2183149

Table 3.

Factor Loadings for ACSUS Items from Confirmatory Factor Analysis

Factor Loadings
Items Factor 1 Factor 2
1. How often did you use both alcohol and marijuana on the same occasion during the past 12 months, so that the effects of alcohol and marijuana overlapped? 1.00
2. How many drinks containing alcohol did you have on a typical day when you were using both alcohol and marijuana on the same occasion during the past 12 months, so that the effects of alcohol and marijuana overlapped? 0.75
3. How much marijuana did you use (in grams) on a typical day when you were using both alcohol and marijuana on the same occasion during the past 12 months, so that the effects of alcohol and marijuana overlapped? 0.73
4. How often did you have 4 (for women) / 5 (for men) or more drinks on one occasion while also using marijuana on the same occasion during the past 12 months, so that the effects of alcohol and marijuana overlapped? 1.00
5. How often during the past 12 months did you find that you were not able to stop drinking once you started when using both alcohol and marijuana on the same occasion, so that the effects of alcohol and marijuana overlapped? 1.00
6. How often during the past 12 months did you find that you were not able to stop using marijuana once you started when using both alcohol and marijuana on the same occasion, so that the effects of alcohol and marijuana overlapped? 0.99
7. How often during the past 12 months did you fail to do what was normally expected of you because of using both alcohol and marijuana on the same occasion, so that the effects of alcohol and marijuana overlapped? 0.86
8. In the past 12 months, were you or someone else injured as a result of your using both marijuana and alcohol on the same occasion, so that the effects of alcohol and marijuana overlapped? 0.84
9. In the past 12 months, was a relative, friend, doctor, or other health worker concerned about you using both marijuana and alcohol on the same occasion, so that the effects of alcohol and marijuana overlapped, or suggested you cut down? 1.00