Table 3.
Empirically Estimated Volume | |||||||
---|---|---|---|---|---|---|---|
Self-Reported Volume |
1 | 2 | 3–4 | 5–6 | 7–9 | 10+ | Total |
1 | 37 | 7 | 13 | 1 | 3 | 20 | 81 |
2 | 59 | 19 | 20 | 3 | 3 | 38 | 142 |
3–4 | 55 | 37 | 32 | 13 | 7 | 97 | 241 |
5–6 | 39 | 48 | 29 | 9 | 10 | 101 | 236 |
7–9 | 29 | 22 | 26 | 15 | 8 | 90 | 190 |
10+ | 43 | 39 | 45 | 32 | 34 | 203 | 396 |
Total | 262 | 172 | 165 | 73 | 65 | 549 | 1,286 |
Weighted Choen’s κ = .16 (se = .02), ρ=.26