Research Article
Quantifying Repeatability Reproducibility Sources of Error and Capacity of a Measurement: Demonstrated Using Laboratory Soil Plasticity Tests
Table 5
Typical two-way ANOVA table for the R&R study.
| | Source | Sum of squares, SS | Degrees of freedom, df | Mean square, MS |
| | Part (I) | SSA | I − 1 | MSA = SSA/(I − 1) | | Operator (J) | SSB | J − 1 | MSB = SSB/(J − 1) | | Part × operator (I × J) | SSAB | (I − 1)(J − 1) | MSAB = SSAB/(I − 1)(J − 1) | | Error | SSE | IJ(m − 1) | MSE = SSE/IJ (m − 1) | | Total | SSTot | IJm − 1 | — |
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