Web-based research and questionnaires are vital epidemiologic techniques that provide important information about public health and diseases. These are the most common methods of collecting data that are generally less expensive and time-consuming than face-toface interviews, mailed questionnaires, or automated telephone menu systems. Questionnaires and Web tests are not free of limitations, which need to be addressed to achieve reliable and valid results.
A questionnaire can be affected by response bias. This is the tendency for respondents to answer questions based on their opinions, rather than research objectives. Moreover, questionnaire design can influence responses in various ways: for example, question wording may influence the way respondents interpret and understand the question in the same way (reliable) to determine the topic you’re interested in (valid) or can answer with accuracy (credible).
Lack of engagement with the questions can cause respondents to be less likely to give honest responses. Lack of incentives or compensation may hinder respondents from filling out a questionnaire.
Online questionnaires can also be difficult for certain research designs such as studies of reaction time or position. The wide range of settings for browsers size, screen sizes, and operating systems makes it challenging to control and measure the same variables for different augmented reality applications people.
Additionally, surveys conducted on the Web are only accessible to those who are keyboard and Internet literate, which currently excludes a significant portion of the population. It is also difficult for Web researchers to report on participants after the window for their experiment has closed.