Web-based experiments and questionnaires are vital methods for analyzing epidemiology and provide vital information on public health and disease. These are common methods of collecting data, which are usually less costly and time-consuming than face-to-face meetings, mailed questionnaires, or automated telephone menu systems. Questionnaires and Web tests are not without their limitations, which need to be addressed to get reliable and valid results.
A questionnaire could be influenced by response bias, the tendency of respondents to answer questions according to their opinions rather than the research objectives. Furthermore, the design of a questionnaire can influence responses in different ways: for example the wording of questions can influence whether respondents comprehend and interpret the questions internet-based.org/internet-polls in the same way (reliable) and also, determine the topic you’re interested in (valid), or can answer with accuracy (credible).
A lack of involvement with the questions may cause respondents to be less likely to provide honest answers. A lack of incentives or compensation can make it difficult for respondents to fill out survey forms.
Online questionnaires can be difficult for certain research designs such as studies of reaction time or position. The wide range of settings for browsers as well as screen sizes and operating systems makes it challenging to control and measure the same variables for different people.
Furthermore, Web-based surveys are only available to those who are keyboard and Internet knowledgeable, which currently excludes a significant percentage of the population. In addition, it’s often difficult for Web researchers to inform participants after an experiment’s window closes.