The big family
Probability distributions. Probability distributions frequently used, different to the normal one, are described: Student’s t, chi-square and Snédecor’s F.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Sin categoría
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.
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.