Judged: two independent readers; copy check clear.
differential validity
differential validity Differential validity is the extent to which a test or assessment predicts outcomes differently across subgroups rather than equally well for everyone.
Differential validity is the extent to which a test or assessment predicts outcomes differently across subgroups rather than equally well for everyone. In this source, it refers to dynamic assessment having stronger predictive value for students with intellectual or reading disabilities than for students with socio-cultural disadvantage.