Table 1.
Subject characteristics (n = 24).
| Mean | SD | |
|---|---|---|
| Age | 31.5 | 11.2 |
| BMI (kg/m2) | 23.2 | 3.2 |
| TFEQ cognitive restraint | 9.9 | 4.3 |
| TFEQ disinhibition | 6.3 | 3.4 |
| TFEQ hunger | 5.3 | 2.6 |
| BES | 7.6 | 5.5 |
| Preferred food energy intake (kcal) | 294.1 | 122.4 |
| Total energy intake (kcal) | 655.3 | 222.5 |
| RRV of non-food alternativesa | 77.8 | 109.9 |
| RRV of fooda | 29.2 | 19.9 |
| k | 0.025 | 0.045 |
| AUC | 0.50 | 0.21 |
| N | % | |
|---|---|---|
| Race | ||
| Caucasian | 16 | 66.7 |
| Asian | 6 | 25.0 |
| African–American | 1 | 4.2 |
| Hispanic | 1 | 4.2 |
| Education completed | ||
| High school/vocational | 13 | 54.2 |
| College or graduate | 11 | 45.8 |
Note: BMI, body-mass-index; TFEQ, Three-Factor Eating Questionnaire; BES, Binge Eating Scale; RRV, relative reinforcing value; AUC, area under the curve.
a
Measured using breakpoints–the highest reinforcement schedule completed for access to food or alternatives in the RRV task (Epstein, Temple, et al., 2007; Temple et al., 2008).