Write a literature review that explains what is known and not known about the phenomenon based on a critical evaluation of the five studies.

Question 1: Theory
Theories play a vitally important role in guiding research and organizing and making sense of research findings. In spite of the great importance of theory-building and theory testing within your field of specialization, there is no generally accepted conception of what a theory is. Because your dissertation must contribute to theory, you must have a clear understanding of the variety of conceptions of theory, types of theories, and ways of contributing to theory and be able to justify how, exactly, your study contributes to theory.
Part 1
Using Gelso (2006), Harlow (2009), Stam, H. (2007, 2010), Wacker (1999), and five additional peer-reviewed articles from your specialization, discuss scholarly views on the nature and types of theory. Compare and contrast at least three views of what constitutes a theory, including the view you will use in Part 3 of this question. Be sure to distinguish theory from related concepts, such as hypothesis, paradigm, model, and concept.
Part 2
Using Ellis & Levy (2008), Harlow, E. (2009), and five additional peer-reviewed articles, review the scholarly literature on the relationship between theory and research and the ways research (quantitative and qualitative) can contribute to theory. Discuss at least three ways research can contribute to theory.
Part 3
Pick a theory (in one of the views of what constitutes a theory that you identified in Part 1) of current interest directly related to the topic area of your dissertation. A theory is currently of interest if there are articles published on it in the past five years. Using at least 10 published, peer-reviewed research articles:
1. Explain how the theory adds or may add to our understanding of your field and/or research topic.
2. Discuss and analyze the literature on two areas of controversy or unanswered questions related to the theory.
The structure of your paper should be as follows:
Title page
Body (10-15 pages, no more or less; APA Style; use appropriate headings for organization of the paper)
References (APA Style)
Learning Outcomes:
1. Compose a theoretically sound and conceptually rich essay that demonstrates knowledge of fundamental subject areas of a student’s academic discipline and specialization.

Question 2: Practical Application
Your dissertation research must contribute to theory. Your research and the theory to which it contributes may or may not have a practical benefit or application. There is no doubt, however, that there is a theory in your dissertation topic area that does have a practical application.
Part 1
Referencing at least five peer-reviewed journal articles or scholarly books, discuss views on the relationship between theory and application or practice. How can a theory guide or inform practice? What are the issues involved in translating theory into practice? Be sure to keep in mind the various conceptions of theory you discussed in Question 1.
Part 2
Referencing at least five peer-reviewed journal articles, fully describe a theory of current interest in your topic area. A theory is currently of interest if there are articles published on it in the past five years. This theory may or may not be the same as the one you examined in Question 1, Part 3. Describe a current view of the theory, not the founder’s view or a classic view. Your answer should be no more than three pages long.
Part 3
Identify at least five scholarly articles (published in the last 5 years) that address how the theory you discussed in Part 2 has actually been applied. (Draw on your response to Part 1 in order to define what you mean by an application of a theory to an actual problem or situation.) Critically evaluate the appropriateness of the uses to which the theory has been applied. Consider, for example: Are the applications premised upon an accurate understanding of the theory and its scope? Do the applications “go beyond” what the theory claims? Is the reasoning linking application and theory sound?
The structure of your paper should be as follows:
Title page
Body (10-15 pages, no more or less; APA Style; use appropriate headings for organization of the paper)
References (APA Style)
Learning Outcomes:
2. Critique existing research and design a methodologically sound approach to research in the student’s academic specialization(s).

Question 3: Research
The ability to read, understand, critique, and integrate research studies and to design a study to address a gap in the research literature is a vital tool for a doctoral student. As you write your dissertation, you may be reading hundreds of studies, many of which you will evaluate as part of a coherent literature review.
Select five empirical articles from peer-reviewed journals that:
• you consider critical to your understanding of your area of dissertation research
• all address a particular phenomenon and attempt to contribute to theory about it
Part 1
1. Describe each study, including:
• the research problem, questions, or hypotheses
• the research purpose
• type of design and elements of the design (e.g., sample, data analysis, operationalization of constructs)
• threats to validity and if and how they were addressed
• the findings and their implications
2. Critically evaluate each study: Does the author make a compelling case for the meaning and significance of the findings?
Part 2
Write a literature review that explains what is known and not known about the phenomenon based on a critical evaluation of the five studies.
Part 3
Develop a research question that addresses one of the unknowns you identified in Part 2 and sketch a quantitative or qualitative study that can answer the question about what is unknown and contribute to theory (in some sense of theory you discuss in Question 1).