Semi structured questionnaire includes both open ended and close ended questions.

Hai,

The following article may be useful for your requirement;

An Introduction to Questionnaire Design - https://www.b2binternational.com/files/08-market-research-ch8.pdf

Good luck

Parallel and sequential research designs are very different approaches to mixed methods research, so you would need to develop different kinds of questionnaires that suit your purposes. In particular, there is no specific kind of questionnaire that matches either parallel or sequential designs. Instead, you to determine what your research goals are and create a questionnaire that meets those goals.

I agree with David L Morgan, it depends on research goals and questions.

Agree with David L Morgan