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| подкрепление после установленного числа ответных реакций | |||
| ratio reinforcement: 25 phrases in 13 subjects |
| Biology | 2 |
| Bridge construction | 1 |
| Cement | 2 |
| Construction | 4 |
| Electronics | 3 |
| Hydraulic engineering | 1 |
| Makarov | 1 |
| Mining | 2 |
| Psychology | 5 |
| Road works | 1 |
| Seismic resistance | 1 |
| Silicate industry | 1 |
| Technology | 1 |