Table 3.

Individual Results in Experiment 2

Species	Subject	PGT	EPGT	RPGT	Strategy
Chimpanzee	Lana	I	I	D	Max
	Mercury	I	I	D	Max
	Sherman	I	I	D	Max
Capuchin	Drella	I	–	D	Max
	Gabe	I	–	D	Max
	Liam	I	–	D	Max
	Lily	–	–	D	–
	Logan	I	–	D	Max
	Nala	–	–	D	–
	Wren	I	D	D	Max

In each condition, each individual was classified as having (1) an increasing monotonic function (I) indicative of learning to prefer the low variability deck, (2) a decreasing monotonic function (D) indicative of learning to prefer the high variability deck or (3) not having shown evidence of learning (−). We were also able to classify individuals as having an overall strategy of reward maximization (Max) or variance avoidance (Avoid)