A group of post-graduate students work together to complete a mini-research project. Their lecturer indicated that they should make use of explanatory research in the project. The students are disagreeing on the use of this type of research. A study that attempts to test predictions and hypotheses is more likely to be _____ . For this reason, if you opt for an ______ study, you will most likely take a quantitative approach. A. Correlational research B. Participatory research C. Mixed methods D. Evaluation research E. Explanatory research