Calculateur de Précision de Test
Calculez la précision de vos réponses à un test.
T-Score (Standard Score)
58.8
T-Score (Standard Score) vs Your Score
Formule
## How to Calculate a Standard Score (T-Score) A T-score rescales your z-score to a distribution with mean 50 and standard deviation 10. ### Formula **T-Score = 50 + 10 x Z** Where Z = (Score - Mean) / Standard Deviation T-scores eliminate negative numbers and decimals, making interpretation easier.
Exemple Résolu
A student scores 82 in a group with mean 75 and standard deviation 8.
- 01Z-score = (82 - 75) / 8 = 0.875
- 02T-score = 50 + 10 x 0.875 = 58.75
- 03The student is above average with a T-score of 58.75.
Questions Fréquentes
What is a T-score?
A T-score is a standard score with mean 50 and standard deviation 10. A T-score of 60 means you are one standard deviation above the mean.
When are T-scores used?
T-scores are commonly used in psychological testing, educational assessments, and clinical evaluations to compare individuals to a reference group.
What is the range of T-scores?
Most T-scores fall between 20 and 80 (within 3 standard deviations). A T-score of 50 is exactly average.