Answer:
Case study
Explanation:
Mateo was reading about Konrad Lorenz for his psychology class. Lorenz was able to get goslings to become attached to him, thus demonstrating the imprinting phenomenon. These goslings were the subject of a case study, which is a descriptive method that closely examines an individual or a small group.
Case study is a research strategy and an empirical inquiry that investigates a phenomenon to generate an in depth understanding of a complex issues within its real life context,it is used to gain a better understanding of a subject or process and used to narrow down a very broad field.Freud's works and theories were mostly developed through the use of individual case studies.
Three-fifths Compromise, Attack on Fort Sumter, Emancipation Proclamation, Assassination of Abraham Lincoln