There are three well-known reasons that researchers seek after. They are; experience, theory testing, and replication of previous research. Past experiences of professionals can be a strong inspiration for researchers. Researchers are mostly interested in negative experiences for the purpose of improving practices and making them better for next generations. Theories can be used to develop research studies. Even a single study can be the focus of a research to examine its implications. The replication studies refer to repeating a past research recognizing its methodological weaknesses to do a better one. A researcher repeats a study carefully so that the previous limitations will not be repeated.