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. Author manuscript; available in PMC: 2021 Jun 1.
Published in final edited form as: Psychol Addict Behav. 2020 Jan 30;34(4):497–505. doi: 10.1037/adb0000553

Table 2:

Descriptive Statistics, T-tests and Effect Sizes for Outcome Variables on Planned and Unplanned Drinking Days

ALL DRINKING EVENTS UNPLANNED PLANNED
Min Max M(SD) M (SD) M (SD) t p Cohen’s d
TOTAL DRINKS 1 17 5.23 (2.85) 3.76 (2.33) 5.61 (2.90) −5.82 .039 0.70
NEGATIVE CONSEQUENCES 0 6 0.79 (1.10) 0.48 (0.79) 0.88 (1.16) −3.11 .001 0.40
POSITIVE CONSEQUENCES 0 8 2.49 (1.86) 1.86 (1.80) 2.61 (1.85) −3.51 .904 0.41
WORTH IT 0 6 4.07 (1.33) 3.89 (1.30) 4.09 (1.35) −1.27 .709 0.15
OVERALL EVALUATION −3 3 1.43 (1.17) 1.42 (1.05) 1.43 (1.21) −.054 .213 0.01

Note: N=96; There was also a significant difference between endorsement of any negative consequence between unplanned (15.67%) and planned (84.33%) drinking days (x2 = 4.82, p < .028).