T score

T Score

A T Score is a type of standard score that is used in statistics to standardize and compare data. It is calculated by subtracting the mean of the data set from an individual data point and then dividing by the standard deviation of the data set. The T Score is often used in hypothesis testing, regression analysis, and t-tests.

Calculation

The formula for calculating a T Score is:

T = (X - μ) / σ

where:

• T is the T Score
• X is the individual data point
• μ is the mean of the data set
• σ is the standard deviation of the data set

Uses

T Scores are used in a variety of statistical analyses. They are commonly used in hypothesis testing to determine if a data set is significantly different from a null hypothesis. In regression analysis, T Scores are used to determine the significance of variables. In t-tests, T Scores are used to compare the means of two data sets.

T Score in Medicine

In medicine, T Scores are used in the diagnosis of osteoporosis. A T Score is a comparison of a patient's bone density to the average bone density of a healthy 30-year-old adult. A T Score of -1.0 or above is considered normal, a T Score between -1.0 and -2.5 indicates osteopenia, and a T Score of -2.5 or below indicates osteoporosis.

See Also

• Z Score
• Standard Deviation
• Mean
• Hypothesis Testing
• Regression Analysis
• T-Test
• Osteoporosis