How to design a questionnaire
Wai-Ching Leung has some practical advice on questionnaires
As discussed in a previous issue a survey involves directly collecting information from people (or sometimes organisations) whom we are interested in.1 The types of information will take account of the people's or organisations' level of knowledge, attitude, personalities, beliefs, or preferences. Questionnaires are widely used to collect such information. Well designed questionnaires are highly structured to allow the same types of information to be collected from a large number of people in the same way and for data to be analysed quantitatively and systematically. Questionnaires are best used for collecting factual data and appropriate questionnaire design is essential to ensure that we obtain valid responses to our questions.
There are two main objectives in designing a questionnaire:
To maximise our response rate, we have to consider carefully how we administer the questionnaire, establish rapport, explain the purpose of the survey, and remind those who have not responded. The length