Table 2.
Paired Samples t-test Statistics.
| Outcome | Pre-social-distancing M (SD) | Post-social-distancing M (SD) | t | p |
|---|---|---|---|---|
| Alcohol QF | 17.35 (14.45) | 17.38 (13.83) | −0.070 | 0.944 |
| NIAAA: Frequency | 5.19 (1.59) | 5.18 (1.79)† | 0.231 | 0.818 |
| NIAAA: Quantity | 3.16 (2.09)‡ | 3.15 (1.95) | 0.075 | 0.940 |
| NIAAA: Time | 2.63 (0.94) | 2.69 (1.08) | −2.039 | 0.042 |
| NIAAA: Max drinks | 4.02 (1.94) | 3.95 (2.01) | 1.560 | 0.119 |
| NIAAA: Binge frequency | 2.85 (1.97)‡ | 3.00 (2.03) | −3.220 | 0.001 |
| RPI: Reward probability | 33.95 (5.68) | 30.23 (6.60) | 18.823 | <0.001 |
| RPI: Environmental suppressors | 26.53 (6.82)† | 25.67 (6.53)† | 6.088 | <0.001 |
| RPI: Total | 60.40 (9.94)† | 55.89 (9.61) | 16.771 | <0.001 |
| DMQ: Social motives | 2.71 (1.12)‡ | 2.08 (1.20)‡ | 19.239 | <0.001 |
| DMQ: Coping motives | 2.38 (1.09)‡ | 2.49 (1.12)‡ | −5.356 | <0.001 |
| DMQ: Enhancement motives | 2.82 (1.00)‡ | 2.73 (1.03)‡ | 4.095 | <0.001 |
| DMQ: Conformity motives | 1.91 (1.10)‡ | 1.79 (1.13)‡ | 6.507 | <0.001 |
| PHQ: Total | 6.58 (6.99)‡ | 7.49 (7.01)‡ | −7.683 | <0.001 |
| Solitary drinking frequency | 6.73 (3.29) | 5.14 (3.52) | 16.169 | <0.001 |
| Virtual drinking frequency | 3.83 (3.42)‡ | 5.36 (3.91)‡ | −12.188 | <0.001 |
| APT: Intensity | 8.61 (27.74) | 7.34 (10.23) | 1.425 | 0.155 |
| APT: Breakpoint | 9.89 (4.54)‡ | 9.72 (4.65) | 2.245 | 0.025 |
| APT: Omax | 21.43 (22.04) | 23.93 (27.55) | −4.624 | <0.001 |
| APT: Pmax | 7.25 (3.88) | 7.10 (3.79) | 1.441 | 0.150 |
| APT: Elasticity | 0.026 (0.21) | 0.076 (1.04) | −1.509 | 0.132 |
NIAAA, National Institute on Alcohol Abuse and Alcoholism (questions from 5-item set); RPI, Reward Probability Index; Items that contribute to the environmental suppressors subscale of the Reward Probability Index are reverse-scored. DMQ, Drinking Motives Questionnaire; APT, Alcohol Purchase Task; Statistical significance threshold set at 0.002 to correct for family wise error.
†
Mean score for white participants significantly greater than non-white mean score (p < 0.002).
‡
Mean score for non-white participants significantly greater than white mean score (p < 0.002).
Bolded values p < 0.002.