How to Increase the Quality and Reliability of Online Questionnaires and Web Experiments
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Questionnaires are used to gather information in a research study. They usually have open or closed questions however some questionnaires might use the combination of both. Questions that are open give respondents the freedom to respond in their own words. Closed questions present a set of answers that the respondents can choose from. Questionnaires can be administered in one of various ways, such as face-to-face interviews, phone calls postal mail, or online.
Online survey questionnaires are becoming more commonplace, but it is important to ensure that the information gathered is valid and reliable. To do this researchers must be able precisely measure response rates and monitor the number of respondents to the survey. The researcher should be able to identify the possible reasons why someone might not respond, and address these issues (e.g. sampling bias).
Online questionnaires are also less expensive than traditional methods. This makes them a desirable alternative to traditional questionnaire based research. However, this method is not without its challenges: online questionnaires can be difficult to evaluate for their quality and validity and could result in social desirable effects in the respondent sample.
There are many ways to minimize the limitations. This article provides a number of specific strategies that can help researchers improve the reliability and quality of their online questionnaires, like: (i) paying participants at the time they complete the questionnaire, which results in an equivalence rate that is lower than waiting for all responses or a middle procedure; (iii) asking participants to provide their names for receipt preparation does not decrease or enhance the social value of responses and (iv) framing the fixed portion of a payment to the participant as “for answering the questionnaire” and giving progress feedback improves the quality of answer.
