All the participating individuals used the same Batman piggy bank and same sized quarters to isolate the controlled variables. This allowed the result to be as consistent as possible throughout the observations with each individual. The only difference between the individuals would be the height of the counter, with which the task was being performed on. For the most part, all of the participants except for the child, Micah, performed the tasks on countertops of the same height. Micah performed the task on a children’s table that was 1’5” high and 1’7” flat surface because he was too short to reach the
