A characteristic of some tests that causes students to receive higher or lower scores for reasons other than the trait being measured. A test is not biased simply because two or more groups receive, on average, different scores. A test is biased if members of different groups receive different scores even though they are equal in the trait being measured.
The research reported here is funded by awards to the National Center on Improving Literacy from the Office of Elementary and Secondary Education, in partnership with the Office of Special Education Programs (Award #: S283D160003). The opinions expressed are those of the authors and do not represent views of OESE, OSEP, or the U.S. Department of Education. Copyright © 2020 National Center on Improving Literacy. https://improvingliterarcy.org