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. 2010 Mar 29;5(3):e9788. doi: 10.1371/journal.pone.0009788

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Herberich et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Intervals are computed by the max- method accounting for heteroscedasticity using the heteroscedastic consistent covariance estimation HC3 (max-t+HC3), by the max- method assuming homoscedasticity using the ordinary least squares covariance estimation (max-t+OLS) and by the Tukey-Kramer method assuming homoscedasticity (Tukey-Kramer). The blue confidence intervals indicate the pairwise comparisons for which the decision of significant difference of the associated group means differs between the test procedures.

Inline graphic — Intervals are computed by the max- method accounting for heteroscedasticity using the heteroscedastic consistent covariance estimation HC3 (max-t+HC3), by the max- method assuming homoscedasticity using the ordinary least squares covariance estimation (max-t+OLS) and by the Tukey-Kramer method assuming homoscedasticity (Tukey-Kramer). The blue confidence intervals indicate the pairwise comparisons for which the decision of significant difference of the associated group means differs between the test procedures.