When a researcher needs to estimate the likelihood of a certain outcome, the method typically employed is predictive design.
Predictive design in a research is mainly concerned with forecasting or predicting outcomes, consequences, costs, or effects. This type of research tries to predict something that has not been tried, tested, or proposed before.
So when a researcher needs to estimate the likelihood of a certain outcome, predictive design is a method which is used. For instance, a researcher might collect high school data, such as grades, extracurricular activities, and many other things in order to predict such college success measures.
Hence, predictive design is most widely used in quantitative research studies.
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