In statistics, the standard score is the number of standard deviations by which the value of a raw score is above or below the mean value of what is being observed or measured. Raw scores above the mean have positive standard scores, while those below the mean have negative standard scores.

What is a good Standardised score?

Standardised scores

The average score on most standardised tests is 100. Technically a score above 100 is above average and a score below 100 is below average. About two-thirds of pupils will have standardised scores between 85 and 115.

What does it mean to standardize scores?

In statistics, standardization is the process of putting different variables on the same scale. This process allows you to compare scores between different types of variables. ... For instance, a standardized value of 2 indicates that the observation falls 2 standard deviations above the mean.