What the researchers wanted to find out in this original scientific research study (the hypotheses) found at this link:

https://sites.ehe.osu.edu/dennis-learning-center/files/2014/08/Tuckman-Kennedy-2011-Teaching-learning-strategies-to-increase-success-first-term-college-students.pdf

which specific type of research method (experimental, quasi-experimental, correlational, or descriptive) was used to test each individual hypothesis. Explain why this research method fits this hypothesis.