Skip to main content
. Author manuscript; available in PMC: 2018 Dec 4.
Published in final edited form as: Psychol Addict Behav. 2016 Aug 25;30(6):630–638. doi: 10.1037/adb0000204

Table 3.

Rate ratios (and 95% confidence intervals) from multilevel negative binomial models of next day’s drinks

B RR 95% CI p
Commitment
    Intercept 0.97 2.86 (2.56, 3.20) < .001
    Person-average − 0.06 0.94 (0.88, 1.00) .053
    Daily − 0.21 0.81 (0.79, 0.83) < .001
Confidence
    Intercept 0.95 2.79 (2.51, 3.10) < .001
    Person-average − 0.14 0.87 (0.81, 0.92) < .001
    Daily − 0.24 0.78 (0.76, 0.80) < .001

Note. RR = rate ratio; 95% CI = 95% confidence interval. Daily-level variables were centered at the person mean. Average variables were centered at the grand mean. Both models accounted for treatment condition, and removing this predictor did not influence results.