In the context of increasing interest and support for a developmental conception of giftedness, there is perhaps an ever-greater need for off-level testing for students with high potential. Off-level testing is no longer merely a single-use tool that helps administrators identify students for gifted programs, but provides essential information…

The differential validity of subject area tests of academic ability is investigated. Principal components analyses of test scores, high school grades, and college grades in English math, social studies, and natural sciences show a dominant general ability dimension and a consistent configuration of subject areas on second and third dimensions.…