Your description of the variables of interest in context of the literature review allows the reader to understand the theorized relationships. You should begin by describing what is known about your variables, what is known about their relationship, and what can be explained thus far. You will investigate other researchers’ theories behind these relationships and identify a theory (or combination of theories) that explains your major research problem. Essentially, your goal is to convey to the reader why you think your variables are related, so the inclusion of previous research and theories that support your belief are essential to defending your rationale. You apply the theory to your problem, and state your hypotheses or predictions regarding potential relationships. You tell the reader what you expect to find in your research.