Table 2.

Factors that affect the dog and handler in the olfactometric diagnosis.

Training and olfactometric detection
Test sample in practice	Description of individual factors
Dog and handler	sniffing (introductory sample)
	breed/age
	faults (dog/species)
	mood of the dog
	type of exercise (assisted/self-training)
	position of sample
	number of samples to be trained
	knowledge sharing
	own thinking and reasoning
	rewards (positive motivation, irregular rewards)
	rituals
	concentration
	room temperature and humidity
	load (amount of practice samples)
	exercise intensity (daily, weekly, monthly)
	exercise (rhythm, home/centre, time of day, strange dogs/exercise, before/after feeding).
Work sample and training	sex
	samples from odour cans- separate, mixed
	dripped working samples
	age of sample (freshness, 10–15 days)
	introduction of foreign odours (during exercise)
	duration of odouring and use
	number of times the working sample has been opened
	number of times the containers have been opened
	amount and method of smelling
	duration of odouring
	duration of use of a single sample
	probability of a negative sample
	ambient odour