Research is a systematic study in a field of knowledge, undertaken to discover or establish facts or principles. It is a systematic process of collecting and analyzing data to find an answer to a question or a solution to a problem, to validate or test an existing history.
Basically, there are 9 (nine) methods of research according to scientific purposes:
1. Historical research is a type of research that examines past events or combinations of events to arrive at an account of what has happened in the past.
2. Descriptive research is used to obtain information concerning the current status of the phenomenon to describe “what exists” with respect to the conditions in a given situation.
3. Developmental research investigates patterns and sequences of growth and or change as a function of time.
4. Case & Field research is a collaborative study of the intensity of the background, its current status and environmental interactions of a given social units – an individual group, institution or community.
5. Correlational research is a method of research in which a researcher compares one variable with another to determine if there is a relationship between them.
6. Causal-comparative research determines the cause or consequences of differences that already exist between or among a group of individuals. This method is also known as ex post facto a Latin words that mean "after the fact.
7. True Experimental research is used to investigate possible cause and effect relationship by exposing one or more experimental groups to one or more treatment conditions and comparing the results to one or more control groups not receiving the treatment. Subjects are randomly assigned to groups.
8. Quasi-Experimental research is used to approximate the conditions of the true experiments in a setting which does not allow the control and or manipulation of all...