Questionnaires and web tests allow experts to reach a far wider crowd than classic paper forms, smartphone or face-to-face interviews and can be conducted for a cheaper cost. This will make them one very popular tool meant for market research and customer studies as well as mental health research. However , inspite of their many advantages offered with some drawbacks which can weaken the quality of the outcomes.

One serious problem is that generally there is less control over capture data than with a paper customer survey. With a Web experiment the participant has the capacity to view stimuli on their own personal device and may even also switch settings including screen size, internet browser, internet connection and the arrears font. This suggests that every respondent experiences a subtly different questionnaire and this can affect how they get suggestions.

Another problem is questionnaire taking fatigue which can result in respondents leaving the survey. The way to avoid this is to help make the questionnaire while short as possible and only inquire abuout that are tightly related to your research. You can even try to randomize the buy of the questions and pretest the questionnaire before performing it to ensure that the questions are obvious and understandable.

Finally, you will need to keep in mind that Net experiments derive from voluntary involvement so they can be a little more susceptible to motivational confounding than laboratory trials. To counter this, you can use an online marketplace such as SONA systems (often used for undergraduate examining at universities), MTurk or Legendary to generate prospects participants.


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