Three British studies recently compared the examination results of pupils from comprehensive schools with those of selective schools. Each study reached somewhat contrasting conclusions. Major differences among the studies are discussed in order to clarify reasons for the contrasting interpretations and to illustrate the major difficulties in…

British and U.S. preschool intervention projects are now reporting dramatic long-term follow-up findings that appear to vindicate the claim that preschool can serve as an "innoculation against failure," especially with disadvantaged children. However, important questions remain about the generalizability of these effects in other…