Counting sheep
Chi-square homogeneity test. The chi-square homogeneity test compares proportions from various samples to see if they come from the same population.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Sin categoría
More than two is a crowd
Analysis of variance (ANOVA). Analysis of variance (ANOVA) is the test used to compare the differences among more than two means of a quantitative variable.
Life is not rosy
Clinical relevance. Clinical relevance should guide us when assessing the results of a study. For this, we will use confidence intervals. We, the so-called human beings, tend to be too categorical. We love to see things in black and white,…
At a rough guess
Signs test. Signs test compares two medians using the direction of the values with respect to the mean and binomial probability.
Size and power
Power and sample size. Power and sample size are two related concepts, which have to do with the ability to detect the studied effect.