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Hypothesis testing assesses whether data are inconsistent with a given hypothesis (usually a null hypothesis of no effect).

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Conflicting results of summary() and anova() for a mixed model with interactions in lmer+lme...

In what is undoubtedly a newbie mistake, I have solved the problem I previously detailed above. The key to getting lmerTest::anova() and summary() to agree is to ensure that the global contrasts in R …
James S.'s user avatar
  • 451
15 votes
1 answer
16k views

Conflicting results of summary() and anova() for a mixed model with interactions in lmer+lme...

I recently came across what I think may be a problem in how the anova() function from the lmerTest packages computes its F-statistics and corresponding P-values for fixed effects from mixed-effects mo …
James S.'s user avatar
  • 451