The theoretical framework section is typically required for quantitative studies, while a conceptual framework is used in qualitative studies.
For part-time study your research should be completed within six years, with writing up completed by the eighth year.
Every dissertation needs to have a theoretical foundation or a conceptual framework (or both) that is discussed in the literature review section.
This information should consist of the author(s) of the theory and details regarding the original study, such as the population, purpose, and results.
Providing this information will help you to highlight why the theory you have selected is valid for use in your study, and will make it easier for you to demonstrate how the theory relates to your own study.