5 | Horse suddenly jumps away more than 2 meters from the novel object, typically followed by trotting, galloping, alertness, and possibly snorting; keeps far away from the novel. object despite handler encouragement. |
4 | Horse is alert and suddenly jumps away less than 2 meters from the novel object, typically followed by trotting, galloping, further alertness, and possibly snorting. |
3 | Horse escapes and exhibits vigilant behavior (elevated neck, head, and ears oriented toward the test stimulus), typically followed by trotting, galloping, alertness, and possibly snorting. |
2 | Horse escapes but is easily restrained. |
1 | Horse does not react to the novel object and approaches it without hesitation. |