So simple, in fact, that we have been able to explain how to do it completely in just 4 steps (see below).
If nothing else, secondary research avoids the all-so-tiring efforts usually involved with primary research.
As an undergraduate or graduate student, your dissertation project won't need to be an expensive endeavour.
Thus, it is useful to know that you can further reduce costs, by using freely available secondary data sets. Most students value another important advantage of secondary research, which is that secondary research saves you time.
As you probably already know, primary research is when the researcher collects the data himself or herself.
The researcher uses so-called “real-time” data, which means that the data is collected during the course of a specific research project and is under the researcher’s direct control.
So to recap, secondary research involves re-analysing, interpreting, or reviewing past data.
The role of the researcher is always to specify how this past data informs his or her current research.
What's more, if you were doing primary research, you would never be able to use longitudinal data in your graduate or undergraduate project, since it would take you years to complete.
This is because longitudinal data involves assessing and re-assessing a group of participants over long periods of time.