Readers are often - and understandably - frustrated when it comes to reports of educational experiments and effect sizes. Let’s say a given program had an effect size of +0.30 (or 30% of a standard ...
Across contemporary cardiovascular clinical trials, the estimates of expected event rates and effect sizes that investigators use to calculate sample sizes—and funding requirements—often come in ...
Phase III Prospective Randomized Comparison Trial of Depot Octreotide Plus Interferon Alfa-2b Versus Depot Octreotide Plus Bevacizumab in Patients With Advanced Carcinoid Tumors: SWOG S0518 In this ...
Low statistical power undermines the purpose of scientific research; it reduces the chance of detecting a true effect. Perhaps less intuitively, low power also reduces the likelihood that a ...
Please provide your email address to receive an email when new articles are posted on . Differences between individuals with autism and those without have lessened over time, which may be tied to ...
Basic concepts in hypothesis testing, including effect sizes, type I and type II errors, calculation of statistical power, non-centrality parameter, and applications of these concepts to twin studies.
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