Final answer:
The technique that is used when more than one set of matched pairs is used to extract adjustment factors is known as Matched pair adjustment.
Step-by-step explanation:
The technique that is used when more than one set of matched pairs is used to extract adjustment factors is known as Matched pair adjustment. Matched pair adjustment is a statistical method that compares two measurements drawn from the same pair of individuals or objects. It is often used in hypothesis testing to compare two sample means.