Advances in Civil Engineering / 2019 / Article / Tab 5

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.

SourceSum of squares, SSDegrees of freedom, dfMean square, MS

Part (I)SSAI − 1MSA = SSA/(I − 1)
Operator (J)SSBJ − 1MSB = SSB/(J − 1)
Part × operator (I × J)SSAB(I − 1)(J − 1)MSAB = SSAB/(I − 1)(J − 1)
ErrorSSEIJ(m − 1)MSE = SSE/IJ (m − 1)
TotalSSTotIJm − 1

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