A "t test" is a statistical test used to determine if there is a significant difference between the means of two groups. It helps us understand if the difference we observe in the data is meaningful or just due to chance. Full definition
A simple paired T test would be possible at this site. (usask.ca)
We performed a power analysis for the independent t test to calculate the acquired sample size, with an alpha of 0.05 and power of 0.8. (capmh.biomedcentral.com)
* p < 0.05 by two - way Student t test except as indicated. (immunohorizons.org)