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.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
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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.
Give me a bar and I’ll move the earth
Standardization. Standardization is described, which consists of subtracting the mean from a value and dividing it by its standard deviation.
The most wished statistical for a mother
Dispersion measures. Some dispersion measures are described, such as the interquartile range, the deciles and the percentiles.
Not all deviations are perverse
Dispersion measures. Dispersion measures such as variance and standard deviation are described, as well as their relationship with the confidence intervals.