The case study focuses on one individual subject; whereas the correlational and experimental methods are focused on many individuals. The case study utilizes one’s life and experiences to provide speculation as to why something is one way or why a problem developed. They are a method to gain knowledge of atypical situations, problems or disorders. In the correlations method approach data is gathered, typically from already existing data, to relate or associate changes to events or disassociate certain factors with outcomes. In the experimental method is a procedure that allows for manipulation of data and/or variables to determine how it will affect the outcome. All three methods are utilized to gather data and form a hypothesis. Also,
