Final answer:
The main advantage of an attached email questionnaire is that it maintains original formatting, making it more visually appealing and possibly encouraging better response rates from participants.
Step-by-step explanation:
The main advantage of an attached email questionnaire over an online social survey is that it retains more of the original formatting and so tends to look more attractive. This format benefits the respondents by providing a visually familiar and structured document, which can enhance their willingness to complete and return the questionnaire. In contrast, social surveys might appear different across various platforms and devices, potentially leading to confusion or distraction.
Moreover, email questionnaires are often perceived as more personal and targeted, which might encourage a more thoughtful and thorough response from participants, particularly when dealing with open-ended questions that elicit qualitative data. When collecting qualitative data, responses can be very subjective and rich in detail, providing a wealth of material for researchers to analyze. On the other hand, social surveys may have issues with demographic misrepresentation and response duplicity, which could compromise the accuracy of the collected information.