Table 3.
Phases and Conditions of Experiment 2
| Group rT | Group No-rT | |||||
|---|---|---|---|---|---|---|
| Target | Alternative | Target | Alternative | |||
| Phase I | C1 | (No treatment) | VI 32 token + VI 8 rT | - | VI 32 token | - |
| (Baseline) | C2 | (DRA) | VI 32 token + VI 8 rT | - | VI 32 token | - |
| 12 sessions | C3 | (NCR) | VI 32 token + VI 8 rT | - | VI 32 token | - |
| Phase II | C1 | (No treatment) | VI 32 token + VI 8 rT | - | VI 32 token | - |
| (Treatment) | C2 | (DRA) | VI 8 rT | VI 8 token | Ext | VI 8 token |
| 21–33 sessions | C3 | (NCR) | VI 8 rT + VT 8 token | - | Ext + VT 8 token | - |
| Phase III | C1 | (No treatment) | VI 8 rT | - | Ext | - |
| (Extinction) | C2 | (DRA) | VI 8 rT | Ext | Ext | Ext |
| 15–18 sessions | C3 | (NCR) | VI 8 rT | - | Ext | - |
| Phase IV | C1 | (No treatment) | VI 32 token + VI 8 rT + RI | - | VI 32 token + RI | - |
| (Reacquisition) | C2 | (DRA) | VI 32 token + VI 8 rT + RI | - | VI 32 token + RI | - |
| 6 sessions | C3 | (NCR) | VI 32 token + VI 8 rT + RI | - | VI 32 token + RI | - |
Note. Target = left screen area, Alternative = right screen area. C1, C2, and C3 = Multiple-schedule component 1 (no treatment), 2 (DRA), and 3 (NCR), respectively. VI 32 and VI 8 = variable-interval 32-s and 8-s schedules, respectively. VT 8 = variable-time 8-s schedule. Token = token deliveries accompanied by 3-s of animated fireworks and chimes, rT = 0.5-s smaller fireworks and muted chime (no token). Ext = extinction for responses to a screen area. RI = two response-independent tokens in the first three components.