अनुसंधान की कार्यप्रणाली (Methodology) का विस्तृत विवरण निम्नलिखित में से किसमें अनिवार्य नहीं होता है?

A researcher wants to explore the effect of possible factors on the organization of effective computer-based learning interventions in schools. Which research method is most appropriate for this study?

Which of the following steps is NOT essential while designing a questionnaire?