Given that an effect size of d=. 4 is a good first estimate of the smallest effect size of interest
in psychological research, we already need over 50 participants for a simple comparison of …

In psychology, attempts to replicate published findings are less successful than expected.
For properly powered studies replication rate should be around 80%, whereas in practice …

Abstract Background and Objectives Researchers typically use Cohen's guidelines of
Pearson'sr=. 10,. 30, and. 50, and Cohen'sd= 0.20, 0.50, and 0.80 to interpret observed …

Noted for its accessible approach, this bestseller applies power analysis to both null
hypothesis and minimum-effect testing using the same basic model. Through the use of a …

Efforts to improve the reproducibility and integrity of science are typically justified by a
narrative of crisis, according to which most published results are unreliable due to growing …

Ten years ago, Pellicano and Burr published one of the most influential articles in the study
of autism spectrum disorders, linking them to aberrant Bayesian inference processes in the …

The reporting of accurate and appropriate conclusions is an essential aspect of scientific
research, and failure in this endeavor can threaten the progress of cumulative knowledge …

Most neuroimaging studies display results that represent only a tiny fraction of the collected
data. While it is conventional to present" only the significant results" to the reader, here we …

While several studies have investigated the various effects of open educational resources
(OER) and open educational practices (OEP), few have focused on its connection to …

Research suggests that sleep deprivation both before and after encoding has a detrimental
effect on memory for newly learned material. However, there is as yet no quantitative …