Juan realizes that if he studies an extra hour for his test, he will score five points higher. for each extra hour spent studying, he is getting one hour less sleep. when deciding whether to spend an additional hour studying or sleeping, juan is engaged in what economic activity?

answer; depression and breathing related sleep disorder(independent);

i believe the answer is: description

description refers to the goal of psychologist to identify the phenomenon that being observed. this goal is being actualized by collecting data/information from various clues that observed through the phenomenon. this goal must be accomplished before pyschologist able to create methods of treatment.