T Score
On the MMPI, a standard score with a mean of 50 and a standard deviation of 10.
T score is a statistical measurement that is used in the field of psychology to standardize test scores for the purpose of comparing an individual’s performance to that of a reference group.
T scores have a mean of 50 and a standard deviation of 10. This means that a T score of 50 represents the average score for the reference group. Any T score above 50 indicates that an individual’s score is higher than the average for the reference group, while any T score below 50 indicates that an individual’s score is lower than average for the reference group.
One of the advantages of using T scores is that they allow for easier comparison of test scores across different tests that may have different raw score scales. T scores also enable clinicians and researchers to compare an individual’s performance to a normative sample, which provides context for understanding the meaning of an individual’s score.
It is important to note that T scores are not the only method of standardizing test scores. Other methods include z scores and percentile ranks. Each of these methods has its own mathematical formula, but they all serve the same purpose of standardizing scores for comparison purposes.
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