Equating

Equating is a statistical process used in testing to ensure scores from different versions of an exam are comparable. When an exam is revised or administered in different forms, equating adjusts scores so that a person’s performance means the same thing across all versions. This ensures fairness, allowing scores to be interpreted consistently, even if the difficulty varies between test forms. Essentially, equating creates a common scale, enabling valid comparisons and accurate assessment of abilities regardless of which specific test version a person takes.