The table below is mentioned in footnote 20 in the Sociological Methods and Research article. As discussed in that footnote, this table presents the probability of at least one person from the NSPE screener-sample participating in protest events of various sizes. See footnote 20 in the article text for more details.
Table A1: Relationship Between Protest Size and Likelihood of Inclusion in the NSPE
| Protest Size | Probability of Participation | Probability that none of screener-sample members participated in protest of this size | Probability that at least one screener-sample member participated in protest of this size |
| 10 | 4.26E-08 | 0.999 | 0.001 |
| 50 | 2.13E-07 | 0.995 | 0.005 |
| 100 | 4.26E-07 | 0.989 | 0.011 |
| 200 | 8.53E-07 | 0.979 | 0.021 |
| 500 | 2.13E-06 | 0.948 | 0.052 |
| 1,000 | 4.26E-06 | 0.898 | 0.102 |
| 5,000 | 2.13E-05 | 0.583 | 0.417 |
| 10,000 | 4.26E-05 | 0.340 | 0.660 |
| 20,000 | 8.53E-05 | 0.116 | 0.884 |
| 30,000 | 1.28E-04 | 0.039 | 0.961 |
| 40,000 | 1.71E-04 | 0.013 | 0.987 |
| 50,000 | 2.13E-04 | 0.005 | 0.995 |