trial, we test the presence of such communications and their consequences. Focusing on a cohort of primary school students … than the placebo and control groups in a memory test. We detect improvements in treated students' academic performance …

power of the R-test were evaluated and compared with that of the F-test in the analysis of a single factor repeated measures … when the data were normal, the R-test was approximately as sensitive and robust as the F-test, while being more sensitive … than the F-test when data had skewed distributions. The R-test was more sensitive and robust than the F-test in the …