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Table 1 Mixed-effect models results of time, intervention, and time by intervention interaction on drinks in a typical week and AUDIT-C (Study 1)

From: Outcomes of two randomized controlled trials, employing participants recruited through Mechanical Turk, of Internet interventions targeting unhealthy alcohol use

Effect Drinks in a typical weekab AUDIT – Ca
Estimate ± SE t p Estimate ± SE t p
Intercept 1.41 ± 0.02 57.81 < 0.001 8.48 ± 0.17 50.08 < 0.001
Time (Ref: Baseline) −0.30 ± 0.03 −9.14 < 0.001 −1.80 ± 0.21 −8.44 < 0.001
Condition (Ref: Control condition)
 CYD condition − 0.02 ± 0.03 −0.57 0.569 −0.24 ± 0.24 −1.00 0.319
 AHC condition −0.02 ± 0.04 −0.55 0.583 −0.03 ± 0.25 −0.14 0.893
   F p   F p
Time x Intervention
(Ref: Baseline x control condition)
  1.85 0.158   1.10 0.333
  1. SE Standard Error
  2. aprimary outcome variable
  3. bModel was conducted using the log transformation of the outcome variable