One of the most common methods of data collection in second language research is using questionnaires of various kinds. In spite of the wide application of questionnaires in the second language field, there does not seem to be sufficient awareness in the profession about the theory of questionnaire design and processing.
The usual--and in most cases false--perception is that anybody with a bit of common sense can design good questionnaires, and the practice of questionnaire design and use has remained largely uninformed by theory. As a consequence, it is all too common to see that studies which start out with exciting research questions are spoiled by the application of badly designed questionnaires and/or a lack of reliable and valid results due to faulty processing.
One reason for the lack of sufficient awareness of questionnaire theory among language researchers is the absence of relevant summaries and training materials in the second language literature. The purpose of the current book is to fill this gap.
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