The phrase "norm group" refers to a specific group of people that is used as a reference point for comparison. It helps in gauging how individuals or groups perform or behave relative to this established standard. Full definition
These are falsely, yet oft - termed norm - referenced tests as companies often use a national norm group as part of their development. (vamboozled.com)
By creating norm groups or specific criteria to which students are compared, they say, test makers can measure each student's abilities with precision. (pbs.org)
Over the past 2 years our district has administered computer adaptive assessments and do so in an environment that establishes a national norm group composed of hundreds of schools. (edsource.org)