Research Article
Level of Evidence of Dental Research in Saudi Arabia (2000–2020)
Table 3
Interpretation of kappa values by Landis and Koch scale.
| Kappa statistics | Strength of agreement |
| <0.00 | Poor | 0.00–0.20 | Slight | 0.21–0.40 | Fair | 0.41–0.60 | Moderate | 0.61–0.80 | Substantial | 0.81–1.00 | Almost perfect |
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