Correlational research is most useful for the purposes of prediction. Option D
This is further explained below.
Generally, When a correlational study design is used, the researcher does not have any direct control or ability to manipulate any of the variables in the study.
A correlation may be used to determine the strength of a link between two or more variables as well as the direction in which that association points.
A correlation might point in either a good or negative direction, depending on how you interpret it.
In conclusion, The application of correlational research to the task of prediction is where it shines brightest. The D Option
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