Matched-pair t test

The matched-pair t-test is a statistical method used to compare the means of two related groups. It is particularly valuable when the groups are not independent and share common characteristics. This test assesses whether the mean difference between paired observations is statistically significant, offering insights into the effectiveness of interventions or treatments within the same subjects. By accounting for individual variability and focusing on within-subject changes, the matched-pair t-test provides a robust approach to hypothesis testing, commonly employed in fields such as medicine, psychology, and social sciences.