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Innovation in der Markt- und Sozialforschung: das forsa.omninet-Panal
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Interactive coding in the field: a test
Research Note: Reducing the Threat of Sensitive Questions in Online Surveys?
Evaluation plan for the Dutch Structural Business Statistics questionnaires: using output to guide input improvements
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Measurement invariance and quality of composite scores in a face-to-face and a web survey
Schneeballverfahren und verwandte Stichprobendesigns