uestionnaires in Second Language Research: Construction, Administration, and Processing is the first summary in the second language field devoted to the question of how to produce and use questionnaires as reliable and valid research instruments. The popularity of questionnaires in data-collection for second language research is due to their easy construction, versatility, and quick processing by means of either quantitative or qualitative methods. Indeed, the frequency of use of self-report questionnaires in the L2 field is surpassed only by language proficiency tests.However, in spite of the wide application of questionnaires in second language research, there is insufficient awareness of the theory of questionnaire design and processing. One reason for the poor awareness of questionnaire theory among language researchers is the absence of relevant summaries and training materials in second language literature. This volume fills the gap and offers a thorough overview of the theory of questionnaire design, administration, and processing made accessible by concrete, real-life second language research applications. A practical conclusion summarizes the main points of questionnaire theory in a handy straightforward checklist. The book can also be used as a textbook for courses in quantitative research methodology and survey research in language acquisition programs found in linguistics, psychology, and education departments.