t-test
Statistical test used to compare means; common in hypothesis testing.
We compared the means of the two groups using a t-test.
A paired t-test is appropriate for this data.
Student's t-test
Standard kanji-katakana spelling for the statistical t-test.
Full katakana spelling sometimes used in technical writing.
From English 't-test' + 検定 (test, verification). The 't' refers to Student's t-distribution.