Dear Ayoub Kechiche,

If you want to set up a questionnaire for your investigation, you must know your conceptual model with the relationships of variables. As per your title, there is one independent variable (CRM), and its impacts on the two dependent variables (customer satisfaction and loyalty). If I am wrong, please suggest me about it.

Further, you must understand the dimensions and indicators of the variables in your study to set up your questionnaire. If these things are clear, I can help you devising your questionnaire.

Expecting your positive response if you need help from me. Thank you.

Dear Dr. Samithamby Senthilnathan

First I wanna thank you for your replied It means to me a lot

Second, the problem is I need a questionnaire from previous researcher's NOT my owen. whatever the variables is that what you mentioned before

is CRM , customer satisfaction and loyalty

and the relationship between them

Please if you have any suggestion or a survey for previous research let me know it would be my pleasure and i will be thankful.

Thank you..

Samithamby Senthilnathan

Dear Ayoub Kechiche,

It is my advice to you that you have to be a leader, not to be a copying person from other research.

It is better to focus on your research problem (it is unique for your study) and you have to know the dimensions and indicators of your study variables. If you come up with these, I am sure I can help you with your own questionnaire for your study.

Please be creative. Good luck in your studies.

Thank you.