The Role of the Anchor in Achieving Population Invariance Across Subpopulations and Test Administrations

Author(s):

Dorans, Neil J.; Liu, Jinghua; Hammond, Shelby

Publication Year:

2006

Source:

von Davier, A.; Liu, M. (eds.) Population Invariance of Test Equating and Linking: Theory Extension and Applications Across Exams (ETS RR-06-31). Princeton, NJ: Educational Testing Service, 2006, p131-160

Document Type:

Chapter

Page Count:

30

Subject/Key Words:

Anchor Tests, Population Invariance, National Council on Measurement in Education (NCME), Population Invariance, Equating, Scholastic Aptitude Test (SAT), Linear Equating Method