What are the disadvantages of correlation research?

The disadvantage of correlation research is that information pulled from data analysis is very limited. This type of research only shows if there is a positive correlation, negative correlation, or no correlation between data sets.

Correlation research is more accurately described as method of data analysis. When plugged into a correlation equation it is possible to determine how much two variable relate. This can also be shown visually by plotting two variables on the x and y axis of a scattergram or scatter chart .

Correlation does not show nor illustrate causation, meaning that it does not prove that one variable causes the other.