[Answer] T scores have a mean of ________ and a standard deviation of ________.

Answer: 50; 10.

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T scores have a mean of ________ and a standard deviation of ________. How to Calculate a T-Score | Sciencing Understanding Standard Deviation and TestScores Understanding Standard Deviation and TestScores Standardized Scores | Educational Research Basics by Del ... T scores in psychometric testing are always positive with a mean of 50 . A difference of 10 (positive or negative) from the mean is a difference of one standard deviation. For example a score of 70 is two standard deviations above the mean while a score of 0 is one standard deviations below the mean. The z-score is often used in the z-test in standardized testing – the analog of the Student's t-test for a population whose parameters are known rather than estimated. As it is very unusual to know the entire population the t-test is much more widely used. The standard score can be used in the calculation of prediction intervals. A prediction interval [L U] consisting of a lower endpoint designated L and an upper endpoint designated U is an interval such that a future observation X will lie in the interval with high probability ${\displaystyle \gam… The z-score is often used in the z-test in standardized testing – the analog of the Student's t-test for a population whose parameters are known rather than estimated. As it is very unusual to know the entire population the t-test is much more widely used. The standard score can be used in the calculation of prediction intervals. A prediction interval [L U] consisting of a lower endpoint designated L and an upper endpoint designated U is an interval such that a future observation X will lie in the interval with high probability ${\displaystyle \gamma }$ i.e. ${\displaystyle P(L

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