“…argues convincingly that although content validation commonly enhances the apparent job relevance and legal defensibility of personnel selection systems, its influence on criterion-related validity is often theoretically and empirically unsupported. In part, this might be because the term content validation often reflects a mix of conceptual and legal concerns (American Educational Research Association, 1999;Buster, Roth, & Bobko, 2005;Kleinman & Faley, 1978;Wollack, 1976), and that may obscure those aspects of content validation that improve the test validation process. Murphy's main thesis is that-at its worst-the requirement for establishing a ''manifest relationship'' dictated by the Civil Rights Act of 1964 implies that either (a) the content of relatively abstract selection tests must appear superficially relevant to job performance (e.g., a spatial test for machinists should contain pictures of gears instead of pictures of abstract shapes, even when the underlying questions are the same) or (b) the content of relatively concrete selection tests must match criterion content very closely, if not literally.…”