According to the article Reach for the Sky about peoples' estimations of their own physical ability, based on performance the most difficult task to estimate was:

The process by which rods and cones become more sensitive to light in response to lowered levels of illumination is called _______

a. afterimage resolution b. light adaptation c. dark adaptation d. afterimage adaptation

We are most likely to rely on schemas when the situation we confront is

a. arousing. b. ambiguous. c. exciting. d. forgettable.