Questionnaires and web trials allow experts to reach a much wider projected audience than traditional paper questionnaires, internet-based.org/internet-polls mobile or face-to-face interviews and can be conducted at a fraction of the cost. This will make them a popular tool meant for market research and customer online surveys as well as factors studies. However , inspite of their various advantages offered with some cons which can challenge the validity of the results.
One serious problem is that at this time there is much less control over data capture than with a paper questionnaire. With a Web experiment the participant will be able to view stimuli on their own personal device and might also transform settings such as screen size, web browser, internet connection as well as the standard font. What this means is that each respondent experiences a quietly different questionnaire and this can affect how they get suggestions.
Another problem is customer survey taking tiredness which can lead to respondents abandoning the survey. The way to avoid this is to make the questionnaire while short as it can be and only ask questions that are strongly related your research. Also you can try to randomize the buy of the questions and pretest the questionnaire prior to performing that to ensure that all the questions are obvious and understandable.
Finally, you have to keep in mind that Web experiments depend on voluntary participation so they can become more susceptible to mindset confounding than laboratory experiments. To counter this, you can use an online marketplace such as SONA devices (often intended for undergraduate diagnostic tests at universities), MTurk or Productive to generate participants.