A questionnaire is an instrument for research that includes questions that are in the standard format that can be used to record the responses of the respondents. The responses to each question (item) on a structured survey can be gathered and examined statistically. A variety of research types use questionnaires, including academic research and market research.
It is crucial to consider the intended people who will be taking part in your survey when designing it. The questions should be simple and understandable, without jargon or technical terms that are confusing for people who are not experts. It is also essential to keep the length of the survey short. People do not like long surveys, and the longer a survey is, the lower the response rate will be.
Web experiments are the method of conducting online experiments by using a browser-based interface such as a website or mobile application. This method offers many advantages, such as the possibility of creating interactive and personalised tests, the possibility of monitoring user activity and conditional branching depending on the previous answers given by participants.
The drawbacks of web-based experiments include the lack of a control group, which could lead to unintentional confusion and inadequate generalization. Also, it may be difficult to assess the results of a web-based experiment due to its interactive nature.
It is also essential to test the questionnaire in the case of a convenience sampling, before distributing it in the field. This will enable you to detect ambiguity, unclear language or biases in the questions, and eliminate them before giving the questionnaire to your targeted population.
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