“…Although the inventory has been standardized on largely Canadian and USA samples (Battle, 1977a(Battle, , 1977b(Battle, , 1978(Battle, , 1990(Battle, , 1992, there are some additional British adult norms (Bartram, Lindley and Fosteer, 1991) which do not differ significantly from the American norms. Good reliability (over 0.80) and validity have been demonstrated across these studies.…”