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Interactive coding in the field: a test
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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
Costs and benefits of reaching parents for survey participation through school communication systems: testing the potential of a straightforward convenience sample
Schneeballverfahren und verwandte Stichprobendesigns
Innovation in der Markt- und Sozialforschung: das forsa.omninet-Panal