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Russell S. Pierce

Researcher

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Top Questions
66 votes

Is there any reason to prefer the AIC or BIC over the other?

modeling aic cross-validation bic model-selection asked Jul 23 '10 at 20:49
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22 votes

When conducting a t-test why would one prefer to assume (or test for) equal variances rather than always use a Welch approximation of the df?

variance t-test homogeneity asked Jul 20 '10 at 14:19
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19 votes

How can one empirically demonstrate in R which cross-validation methods the AIC and BIC are equivalent to?

r aic cross-validation bic asked Jul 25 '10 at 5:08
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16 votes

What do the residuals in a logistic regression mean?

r logistic aic error asked Aug 9 '10 at 7:32
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13 votes

Differences between MANOVA and Repeated Measures ANOVA?

anova repeated-measures manova sphericity asked Jul 18 '11 at 15:20
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11 votes

What is the difference between the Shapiro-Wilk test of normality and the Kolmogorov-Smirnov test of normality?

distributions statistical-significance normality asked Jul 21 '10 at 0:24
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11 votes

Post-hocs for within subjects tests?

r repeated-measures multiple-comparisons post-hoc sphericity asked Jul 23 '10 at 20:14
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11 votes

How does one do a Type-III SS ANOVA in R with contrast codes?

r anova contrasts sums-of-squares asked Nov 15 '10 at 17:01
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10 votes

How does the power of a logistic regression and a t-test compare?

logistic t-test power power-analysis asked Oct 28 '10 at 18:33
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10 votes

In a multi-level model, what are the practical implications of estimating versus not-estimating random effect correlation parameters?

r mixed-model lmer random-effects-model asked Feb 12 at 15:42
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