Percent of citations with reviewers agreement Number of samples extracted Number of repeated iterations Average agreement across citations (%) Standard error Bias (%)*
50 1000 86.7 5 0
86.7 100 1000 86.7 3.5 0
  200 1000 86.8 2.5 0.1
*Bias=Percent citations with reviewers agreement minus average agreement across citations.
Table 1: Evaluation of statistical bias on sampling strategies.