The proliferation of instruments reporting learning/cognitive style with school pupils is of particular interest, because most research on them focuses on applications in higher education, training and the adult workplace, where criticisms of their integrity, reliability and validity have been significant. This study examines two such popular instruments in highly effective schools in England, UK. Neither instrument demonstrated reasonable internal consistency or results according with theoretical constructs. Concerns about their usefulness in these contexts are explored. Reasons provided by faculty for their use were: face validity; external inspection; professional accountability; institutional policy; the legacy from initial training; established classroom practice. (Contains 1 figure and 9 tables.)