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AND PSYCHOLOGICAL MEASUREMENT KELLEY THE EFFECTS OF NONNORMAL DISTRIBUTIONS ON CONFIDENCE INTERVALS AROUND THE STANDARDIZED MEAN DIFFERENCE: BOOTSTRAP AND PARAMETRIC CONFIDENCE INTERVALS KEN KELLEY University ...
Kelley compared three methods for setting a confidence interval (CI) around Cohen's standardized mean difference statistic: the noncentral-t-based, percentile (PERC) bootstrap, and biased-corrected ...
Monte Carlo methods were used to examine techniques for constructing confidence intervals around multivariate effect sizes. Using interval inversion and bootstrapping methods, confidence intervals ...
information about the distribution of group-specific means. In this article we construct confidence intervals that have a constant frequentist coverage rate and that make use of information about across-group ...
distributional assumptions about the dataset, and can be easily applied to a wide range of experimental designs. Randomization (or permutation) tests can be used to calculate p-values and confidence intervals ...
be effectively meaningless. Identifying biomarkers in nonnormal distributions The next examples show that it is not sufficient to only focus on the shift in the central tendency between 2 groups; the shape ...
data and are consolidating our BMC approach by standardizing the BMR selection procedure. To obtain confidence around the BMC estimate, the lower and upper 95% confidence intervals (BMCL and BMCU ...
contained the true values around the nominal level for the scenarios considered (Web Table 2). However, the naive log binomial model had wider confidence intervals than the marginal log binomial model (Web ...
and confidence intervals . Jansen (2014) investigated the effect of the optimization on the expected values of the Akaike information criterion and Mallow’s $$C_p$$ in high-dimensional sparse models. Belloni et al ...
(relative risk (RR) = 1.26, 95% confidence interval (CI): 1.08, 1.43) and with persistent asthma (RR = 1.32, 95% CI: 1.03, 1.69). The effect sizes did not change with adjustment for potential confounders ...
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