Measures of Position and Relative Standing: Comparing Z-Scores (Explained in Spanish)

z Score (or standardized value)
the number of standard deviations that a given value x is above or below the mean

00:00 - Example 01: Better relative position
01:25 - Example 02: Language facility test
02:54 - Example 03: Communicative ability test
05:17 - Example 04: Neuroticism test