Shanshan Zhang
ABSTRACT
This paper describes a case study of sampling bias in LinkedIn, a major professional social network. The study collected a sample of 1,989 STEM students who graduated from a major public university between 2002 and 2014. Overall, 40\% of the graduates had a LinkedIn profile in summer of 2015. It was observed that LinkedIn participation significantly fluctuated among different majors, and ranged from 30\% for biochemistry majors to 51\% for information science majors. Year of graduation, gender, and grade point average surprisingly did not seem to create a large difference in LinkedIn participation. These results should be useful for design and interpretation of empirical studies which use LinkedIn data or select participants from LinkedIn social network.
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Index Terms
- Sampling Bias in LinkedIn: A Case Study
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