Independent and dependent variables are used in experimental research. Unlike some other types of research (such as correlational studies), experiments allow researchers to evaluate cause-and ...

Two more common research types include theoretical research and experimental research. “Theoretical research attempts to measure a theory or phenomenon to determine its relevancy based on research ...

Different types of data need to be presented in appropriate ways. Learn to present types of data with BBC Bitesize. For students between the ages of 11 and 14.

Raking is the standard weighting method used by Pew Research Center and many other public pollsters. In this study, the weighting variables were raked according to their marginal distributions, as ...

In most, if not all, studies we collect data to obtain information about an area of research in which we have an interest. For example, we might want to know the level of dental caries in our area.