a$)$ Distinguish a quantitative study from a qualitative study.

b$)$ Reviewing literature helps further understanding of the problem proposed for research and may lead to refining the statement of the problem.

c$)$ Explain using examples Three $(3)$ components that are captured in literature review.

d$)$ Write short notes on the following terms in research methods:

i$.$ Null hypothesis and Alternative hypothesis

ii$.$ A Moderating Variable and A Control Variable

iii. Dependent and Independent variables.

iv$.$ Probability and Non$-$Probability Methods.