marginally significantp = 0.051
Consistent with the Indifference Points analyses, there was a marginally significant difference between the steepness of the discount rates overall in the nap and wake tasks within subjects [ F (1,18) = 4.375, p = 0.051, η p 2 = 0.196], and similarly a marginally significant decrease in steepness when comparing k before and after a nap or wake interval [ F (1,18) = 3.677, p = 0.071, η p 2 = 0.170].