Why a literature review? You are trying to determine what evidence exists on your research idea.
A literature review is a component of the research process in which the author summarizes or synthesizes the ideas and arguments made by scholars. In the social sciences a literature review can be organized in a number of ways including by topic, chronological, or by methodology . The more focused your research topic the more straightforward the literature review will be.
Remember that the literature review (a.k.a. the lit. review) is, in essence, a paper in and of itself. It has an introduction; a body and a conclusion. It is NOT an annotated bibliography.
Caution: Make sure that the choices you make in writing a literature review reflect the requirements of your assignment. Be sure to consult with your Professor.
The Scientific Method is not one single thing. It refers to the ideas, rules, techniques, and approaches that the scientific community uses.
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The quantiative method is about using numbers. In order to test a hypothesis the researcher will use data, with the goal of formulating laws that will apply the "whole" that is being researched - the "whole" could be a population, an event, etc.