Question: what the advantages and disadvantages of questionnaires as a data collection method?
Answer: (1) Economical: ...  (2) Wide Coverage: ...  (3) Rapidity: ...  (4) Suitable in Special Type of Response: ...  (5) Repetitive Information: ...  (6) An Easier Method: ...  (7) It Puts Less Pressure on the Respondents: ...  (8) Uniformity: