Table 1.
Descriptive Statistics, Cronbach’s Alphas, and Pearson Correlations
| Variable | M | SD | Sk | (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) ln(k) Delay | −5.73 | 1.70 | −0.05 | (0.93) | ||||||||
| (2) ln(k) Date | −6.10 | 1.65 | 0.19 | 0.91*** | (0.93) | |||||||
| (3) Date/Delay Effect | 0.37 | 0.71 | 0.81 | 0.27*** | −0.15*** | (0.25) | ||||||
| (4) Unusual Experiences | 3.77 | 2.57 | 0.50 | 0.06* | 0.04 | 0.06 | (0.71) | |||||
| (5) Cognitive Disorganization | 4.89 | 2.96 | 0.22 | 0.02 | 0.03 | −0.04 | 0.40*** | (0.77) | ||||
| (6) Introvertive Anhedonia | 2.07 | 1.80 | 1.02 | 0.02 | 0.04 | −0.05 | 0.09** | 0.32*** | (0.56) | |||
| (7) Impulsive Nonconformity | 3.14 | 1.94 | 0.57 | 0.04 | 0.06 | −0.04 | 0.40*** | 0.39*** | 0.10** | (0.52) | ||
| (8) Alcohol (AUDIT) | 5.14 | 4.87 | 1.41 | <0.01 | 0.03 | −0.05 | 0.02 | 0.11*** | −0.07* | 0.25*** | (0.77) | |
| (9) Tobacco (ASSIST) | 2.84 | 4.86 | 1.81 | 0.11*** | 0.10** | 0.04 | 0.22*** | 0.16*** | 0.02 | 0.30*** | 0.23*** | (0.58) |
Note. Values in the correlation diagonal represent Cronbach’s alphas, except for the date/delay effect (computed as ln(k) Delay minus ln(k) Date), for which the reliability was estimated using formula 4 from Trafimow.95 Correlations: df = 998. N = 1000. M = mean; SD = standard deviation; Sk = skewness; ln(k) = log-transformed discount rate based on the Monetary Choice Questionnaire.85
*P < .05, **P < .01, ***P < .001 (unadjusted).