are a collection of studies, generally on a particular topic. These types of studies were popular in the late 1960s to test the deterrence model.

aggregate studies

Explanation:

Aggregate studies is a collection of studies generally on a particular topic.

It involves the pulling together of evidence and information about a topic to gain better and deeper insight into them.

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.

answer; their own memory abilities;