Questionnaire mode of approach is qualitative research.
Answers
Questionnaire mode of research is mostly used for collecting quantitative data.
A qualitative research is usually in the form of face-to-face discussion, interview etc., individually or in small groups. This method is more effective for understanding an issue, through direct answers and explanations from the respondent.
A quantitative researcher collects statistical information such as numerical data in the form of percentages, ratings etc.
Questionnaire is a qualitative mode of research.
In the research methods we have qualitative and quantitative research methods.
Questionnaire is a method of field research mode which involves the set of question and need to be answered.
The questions can be open end or close end questions.
This method is qualitative since a researcher gets first hand information and can be very reliable