statistic t-score T score A t-score generally refers to the value resulting from standardizing a sample statistic (e.g., sample mean) in terms of the t-distribution. It quantifies how far the sample statistic is from the hypothesized population parameter in units of the estimated standard error. A t-score is a statistic that represents a measure of the divergence of an individual experimental result from a specified mean, taking sample size into account and expressed in terms of the number of standard errors from the mean value. Philippe Rocca-Serra Brian S. Alper, Harold Lehmann, Joanne Dehnbostel, Muhammad Afzal, Kenneth Wilkins t-value t score T-Score ready for release