When you view a tabletop, its front side makes a bigger image on your retina than the back side does, but you perceive it as rectangular. This fact is an example of what?

Why can duration schedules present problems for researchers?

a) They require complex time protocols b) They do not address level of effort c) They are susceptible to ratio strain d) The do not link rewards to behavior

_____ is the stage in the creative process when we set aside active work on a problem while processing information, often below the level of consciousness

a) Translation b) Illumination c) Meditation d) Incubation