Split Questionnaire Designs as a clever way to make surveys shorter
Long questionnaires are a challenge for respondents and researchers alike. Split Questionnaire Designs (SQDs, Raghunathan and Grizzle, 1995) offer a clever way to make surveys shorter: instead of answering every question, respondents receive only parts of the full questionnaire. But how these parts—or “modules”—are constructed makes a difference for data …