The same old story
Hypothesis contrast. The steps of hypothesis contrast are reviewed: null and alternative hypotheses, choice of statistic, calculation of the p-value and decision.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Statistics
Some comparisons are not odious
Theoretical quantiles graph. The theoretical quantiles graph (q-q plot), used to check the normality of the data of a distribution, is reviewed.
The error of confidence
Mean’s confidence interval. Obtaining a mean, the concept of standard error and the calculation of the mean’s confidence interval are described.
The stigma of guilt
Bayes’ rule. The concept of conditioned probability and the development of Bayes’ rule, the basic form of Bayes’ theorem, are described.
The fragility of the EmPress
Fragility index. Fragility index describes the minimum number of participants whose status has to change for p to go from being statistically significant to not being so.