Dr. marsh has her general psychology class go through an exercise in which they look at a group of objects and attempt to remember them. then she has the class look at another group of objects and create a story involving them. the class finds the second group easier to remember because of

 Elaboration

Explanation:

From the given case/scenario, we can state that the class finds the second group easier because Dr. Marsh tends to elaborate thing within the second group. Elaboration referred to or known as the act under which one tends to add more data and  information to the already existing information in order to create a far much more easier grasp on the subject. It can also be described as adding details or information.

answer; primary source information;