It is better to start with a list of topics of interest, perform a literature review, and go back to your list of topics to elaborate your proposal outline. Your advisor can also discuss the possibilities with you.

Izzat Gul , I think you can go with the dissertation proposal now.

Please o to this link :

https://www.scribbr.com/research-process/dissertation-topics/

It is better to start with a list of topics of interest, perform a literature review, and go back to your list of topics to elaborate your proposal outline. Your advisor can also discuss the possibilities with you.

I think read the literature to have a broad idea and related subtopics. Also discuss with your supervisor about their expertise in this area and what they have published earlier.

Also, read articles published in journals that cover this area to see what ideas are current, what precisely the needs of your school and what can be the methods you can use. You need to collect all these papers, and arrange them and discuss these ideas with your supervisor.

After completing your search and reading of the literature, think about the ideas of your research. Also, think about the research methods to be used. The second question, do you need to submit for ethical approval for your studies. Keep discussing these issues with your supervisor.

Exactly

validate and test reliability of a new questionnaire for medical research

I think you should start searching for literature reviews for your project. The earlier the better.

After identifying the research field, you must read most of papers about the related research problematic/axe. It is better to write a review paper at the end of this step. Then, you must carry out a synthesis and an analyze of the existing research works. After that, you can identify some research questions (if they are not identified at the beginning of your research). In the case of a research on e-learning, the following step is to find a solution of the proposed research questions by preparing questionnaires, proposing a method or a technique, etc. Then, you must validate or test your proposed solution/method/approach/technique by real students. This is the phase of experimentation. Finally, you must collect the data from the experimentation and use statistical techniques/measure to validate your proposed approach based on collected data (T test, ANOVA, Khi2 or χ2, etc). According to the results of your experiment, you can say that your approach is good (accepted) or not.

Yacine Lafifi Adekunle Lawal Lahcene Bachioua Awad Mohamed Ahmed Samy Azer Lahcene Bachioua

Thank you all for your great advice.