Great results from ambiguous sources
Rapidly increasing reliance on Internet panels as a sample source has led to data quality problems. Validation and data cleaning procedures common from telephone and in-person interviewing have not kept pace with these new methods. This paper details common forms of data quality problems resulting from the use of Internet panels, such as indiscriminate selection of responses in qualifying questions to maximize chance of qualification, and how these problems can be addressed in survey design and analysis.
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