The answer is A it the primary purpose
In Piaget's epistemology, cognitive schemas are acquired and formed through a process of internalization conceived of as a functional incorporation of the regular structure of actions into the memory (Piaget 1954). Schemas are higher-level cognitive units that are acquired through slow learning.
Answer:
Playas
Explanation:
"A playa is a dry, vegetation-free, flat area at the lowest part of an undrained desert basin. It is a location where ephemeral lakes form during wet periods, and is underlain by stratified clay, silt, and sand, and commonly, soluble salts."
The variable is the group that was given caffine, because thats what the doctors manipulated. They possibly altered the natural memory of the participants by giving them caffine. A more specific variable could be how much caffine each participant is given and what time are they given it.
