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Obfuscation factor. Obfuscation factor helps us, when conducting a survey, to assess the bias that can be caused by false answers o lies.
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Evidence Based Medicine pills
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Evidence Based Medicine pills
Category Statistics
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.
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Standardization. Standardization is described, which consists of subtracting the mean from a value and dividing it by its standard deviation.
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Dispersion measures. Some dispersion measures are described, such as the interquartile range, the deciles and the percentiles.