# Erratum to: Laboratory effects models for interlaboratory comparisons

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## Erratum to: Accred Qual Assur (2009) 14:553–563 DOI 10.1007/s00769-009-0547-2

Table 4 of this correction includes the line of code that was missing from Table 4 of [1] and updates the corresponding caption. Since the same code had been used to produce some of the numerical results, these are updated in Table 2 below, which should replace the table with the same number in [1]. None of these changes affects the conclusions or recommendations of the original paper.

Table 2

KCRVs and uncertainties

PCB | Model M | Model W | Fixed eff. | Random eff. | ||||||
---|---|---|---|---|---|---|---|---|---|---|

| KCRV |
| KCRV |
| KCRV |
| KCRV |
| \(\widehat{\tau}\) | \(u\left(\widehat{\tau}\right)\) |

28 | 33.6 | 0.60 | 33.3 | 0.18 | 33.6 | 0.26 | 33.6 | 0.60 | 1.33 | 0.43 |

101 | 30.4 | 0.19 | 30.2 | 0.18 | 30.4 | 0.29 | 30.3 | 0.19 | 0.00 | 0.27 |

105 | 10.6 | 0.18 | 10.7 | 0.05 | 10.6 | 0.09 | 10.7 | 0.17 | 0.38 | 0.12 |

153 | 31.9 | 0.45 | 31.9 | 0.14 | 31.9 | 0.20 | 31.9 | 0.41 | 1.04 | 0.34 |

170 | 9.0 | 0.08 | 9.1 | 0.04 | 9.0 | 0.08 | 9.0 | 0.09 | 0.20 | 0.07 |

Table 4

R Implementation of Random Effects Model for PCB 28

### Reference

- 1.Toman B, Possolo A (2009) Laboratory effects models for interlaboratory comparisons. Accred Qual Assur 14:553–563CrossRefGoogle Scholar

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