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. 2017 Jun 1;12(6):e0172834. doi: 10.1371/journal.pone.0172834

Table 3. Inter-rater agreement for the 6-group geometric classification: 3 evaluators at occasion 1 and occasion 2.

Hair Curl Group Occasion 1 Occasion 2
Kappa 95% CI Kappa 95% CI
1 0.171 0.008–0.335 0.000 0.000–0.149
2 0.534 0.371–0.698 0.610 0.447–0.773
3 0.578 0.414–0.741 0.645 0.482–0.809
4 0.531 0.367–0.694 0.806 0.643–0.970
5 0.206 0.045–0.369 0.463 0.299–0.626
6 0.883 0.720–1.000 0.913 0.750–1.000
Combined 0.613 0.527–0.699 0.729 0.641–0.817