Z Scores >

A raw score is simply unaltered data from a test or observation. It is recorded in its original form by a researcher before being subjected to any statistical analysis. For instance, if a participant is given a set of ten questions and answers seven right, their raw score might be 7.

Typically raw scores are converted to standard scores or percentiles before being used in comparisons.

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*Statistical concepts explained visually* - Includes many concepts such as sample size, hypothesis tests, or logistic regression, explained by Stephanie Glen, founder of StatisticsHowTo.

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