Over the past few decades, those who take tests in the United States have exhibited increasing diversity with respect to native language. Standard psychometric procedures for ensuring item and test fairness that have existed for some time were developed when test-taking groups were predominantly native English speakers. A better understanding of…

Test bias detection methods based on item response theory (IRT) are reviewed. Five such methods are commonly used: (1) equality of item parameters; (2) area between item characteristic curves; (3) sums of squares; (4) pseudo-IRT; and (5) one-parameter-IRT. A table compares these and six newer or less tested methods. (SLD)

The extent to which performance assessments can have unintended and undesirable consequences is not yet clear, but preliminary evidence suggests several issues of bias and fairness. Among these is the sheer difficulty of scoring complex performance assessments, as Vermont's experiences with portfolio assessment illustrate. (SLD)

Precedents from litigation on state graduation assessments provide insight into the potential legal arguments challengers may raise with regard to mandated content and performance standards for all students. Clearly documented, fairly administered procedures that adhere to professional recommendations will be the hallmark of defensible standards.…