Introduces and describes the theory that explains why the research problem under study exists.

Sure, I can help with that. Here's a step-by-step guide on how to introduce and describe a theory that explains why a research problem exists:

Step 1: Identify the Research Problem The first step is to clearly identify and define the research problem. This should be a concise statement that outlines the issue you are investigating.

Step 2: Review Relevant Literature Next, review the existing literature on the topic. This will help you understand the current state of research and identify any gaps in knowledge that your study aims to fill.

Step 3: Introduce the Theory Once you have a clear understanding of the research problem and the existing literature, you can introduce the theory that you believe explains why the problem exists. This should be a clear and concise explanation of the theory and its key components.

Step 4: Describe the Theory After introducing the theory, describe it in detail. This should include an explanation of the key principles and concepts, as well as how they relate to your research problem.

Step 5: Explain the Connection Finally, explain how the theory relates to your research problem. This should include a detailed explanation of how the theory provides a framework for understanding why the problem exists.

Remember, the goal is to provide a clear and comprehensive explanation of the theory and its relevance to your research problem. This will help your readers understand the context of your study and the rationale behind it.