Evidence Based Medicine pills
Evidence Based Medicine pills
Comparison of proportions. We review the methods for comparison of proportions: chi-square, Fisher’s exact test and approximation to a normal. This expression has its origin in the crazy habit that came to Romans for making roads connecting the capital of the…
Comparisson of variables. We describe the statistical tests that should be used for comparisson of variables of different kinds.
Transforming data. Sometimes our data set will not follow a normal distribution. We can try transforming data to change this situation.
Bonferroni’s correction. By making multiple comparisons, the risk of Type I error increases proportionally. This can be avoided with the Bonferroni’s correction.
Law of small numbers. The law of small numbers, applying binomial probability, explains the occurrence of Bernouilli events in small samples. I remember when I was a child and went to school that almost everyone had a village to go…