School diversity in the UK is not a new phenomenon. However, recent reforms to "modernise" the secondary school system towards greater diversity of provision, primarily in England, needs to be explored in more detail. The article begins by proposing three phases in the development of state-funded school diversity and provision between…

Addresses the Welsh school-effect in which schools in Wales generally have lower school outcome measures compared to England although the growing number of Welsh medium schools in South Wales are doing better. Suggests an alternative way of analyzing school performance data that leads to the opposite conclusion on both propositions. (CMK)