Table 1. Subjects’ details and choices in the test phase.
| Study | Breed | Sex | Age | Size | Owners’ Gender | Generous Experimenters’ Gender | Test 1 | Test 2 |
|---|---|---|---|---|---|---|---|---|
| 1 | Mix Breed | M | 3 | Medium/Small | F & M | F | G | G |
| 1 | Mix Breed | M | 4 | Big | F & M | F | S | G |
| 1 | Boxer | F | 1,5 | Medium/Small | F & M | F | G | - |
| 1 | Mix Breed | F | 7 | Big | F & M | F | S | G |
| 1 | Mix Breed | F | 8 | Big | F & M | F | S | S |
| 1 | Weimaraner | F | 2 | Big | M | M | S | S |
| 1 | Mix Breed | F | 4 | Medium/Small | F & M | M | - | G |
| 1 | Golden Retriever | F | 1 | Big | F & M | M | G | G |
| 1 | Border Collie | F | 2 | Big | M | F | S | G |
| 1 | German Sheperd | M | 4 | Big | F & M | M | G | G |
| 1 | Beagle | F | 9 | Medium/Small | F & M | M | G | G |
| 1 | German Sheperd | M | 1 | Big | M | M | G | G |
| 2 | Mix Breed | M | 2 | Medium/Small | F | M | G | G |
| 2 | Shih Tzu | M | 2 | Medium/Small | F & M | M | S | G |
| 2 | Mix Breed | M | 6 | Big | F & M | M | G | S |
| 2 | Mix Breed | F | 1,5 | Medium/Small | M | M | S | G |
| 2 | Golden Retriever | F | 7 | Big | F & M | M | S | G |
| 2 | Golden Retriever | F | 7 | Big | M | M | G | G |
| 2 | German Sheperd | F | 5 | Big | F & M | M | G | - |
| 2 | Boxer | F | 4 | Medium/Small | F | M | G | G |
| 2 | Mix Breed | M | 4,5 | Big | F & M | F | G | S |
| 2 | Border Collie | F | 8 | Big | F & M | F | G | S |
| 2 | Golden Retriever | M | 6 | Medium/Small | F & M | F | G | S |
| 2 | Mix Breed | F | 5,2 | Medium/Small | F & M | F | G | S |
| 2 | German Sheperd | F | 4 | Big | M | F | G | G |
| 2 | Golden Retriever | M | 6 | Big | F & M | F | S | G |
| 2 | Mix Breed | F | 7 | Medium/Small | F & M | F | G | S |
| 2 | Mix Breed | F | 9 | Medium/Small | F & M | F | G | S |
| 3 Experimental | Mix Breed | M | 5 | Medium/Small | F | F | G | - |
| 3 Experimental | Mix Breed | M | 5 | Medium/Small | F & M | F | S | - |
| 3 Experimental | Golden Retriever | M | 2 | Medium/Small | F & M | F | G | - |
| 3 Experimental | French Bulldog | M | 4 | Medium/Small | F & M | F | S | - |
| 3 Experimental | Bichón Frissé | M | 5,5 | Medium/Small | F & M | F | S | - |
| 3 Experimental | Boxer | M | 1 | Big | F & M | F | G | - |
| 3 Experimental | Pitbull | F | 1 | Big | F & M | F | S | - |
| 3 Experimental | Pitbull | M | 2,5 | Big | F & M | F | S | - |
| 3 Experimental | German Sheperd | M | 7 | Big | F & M | F | S | - |
| 3 Experimental | Caniche Toy | M | 3,5 | Medium/Small | F & M | F | G | - |
| 3 Experimental | Siberian Husky | M | 8 | Big | F & M | F | G | - |
| 3 Experimental | Rottweiler | F | 5 | Big | F & M | F | S | - |
| 3 Control | Mix Breed | F | 3 | Big | F & M | F | S | - |
| 3 Control | Mix Breed | M | 5 | Medium/Small | F & M | F | G | - |
| 3 Control | Belgian Sheperd | M | 5 | Medium/Small | F & M | F | G | - |
| 3 Control | Mix Breed | F | 4 | Big | F & M | F | G | - |
| 3 Control | Mix Breed | F | 7 | Medium/Small | F & M | F | G | - |
| 3 Control | Caniche Toy | M | 3 | Medium/Small | F | F | G | - |
| 3 Control | Setter | F | 8 | Medium/Small | F & M | F | G | - |
| 3 Control | Border Collie | M | 3,2 | Medium/Small | F & M | F | G | - |
| 3 Control | Boxer | M | 3,2 | Big | F & M | F | G | - |
| 3 Control | Golden Retriever | F | 5 | Medium/Small | F & M | F | S | - |
| 3 Control | Golden Retriever | M | 8 | Big | F & M | F | G | - |
Note: Generous Experimenter (G); Selfish Experimenter (S). Female (F); Male (M).