Even non-significant Ps have a little soul
Clinical relevance. We describe how the clinical relevance of the results of a study should be assessed, without being limited only to their statistical significance.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Statistics
To p or not to p…¿is that the question?
Hypothesis testing. The two types of errors that can be made in a hypothesis testing are described: type I (false positive) and type II (false negative).
Lie to me
Obfuscation factor. Obfuscation factor helps us, when conducting a survey, to assess the bias that can be caused by false answers o lies.
A good agreement?
Kappa coefficient of interobserver agreement. When we have measurements obtained by two observers, the kappa coefficient allows us to separate the degree of coincidence due to chance.
Playing with powers
Centralization and dispersion. The measures of centralization and dispersion, arithmetic mean and standard deviation, as well as the calculation of kurtosis are described.