The theoretical distribution of the value calculated by the Student's t-test. Mathematically this is a Normal distribution divided by the square root of a Chi-squared distribution. This is because the sample variance follows the Chi-squared distribution.
Also used in hcistats2e: Chap. 6: page 73; Chap. 8: page 93
Used in glossary entries: chi-squared distribution, Normal distribution, sample variance, Student's t-test, theoretical distribution