helper (decoy)

A helper (or decoy) is a reference or tool used in scientific and technological contexts to improve measurement accuracy or decision-making. It acts as a known standard or control that assists in calibrating instruments or validating results. For example, in testing, a decoy might be a sample with a known property to compare against unknown samples. This helps ensure the method works correctly and produces reliable data. In essence, helper or decoy concepts serve as anchors or benchmarks, providing clarity and confidence in complex analyses or processes.