Class-size reduction (CSR) initiatives have demonstrated positive short- and long-term effects in elementary grades. Less is known about CSR influence on achievement in middle grades. Thus, we conducted a non-experimental, longitudinal, explanatory study of CSR influence on writing achievement of 3 independent cohorts of students (n = 123) in…

Until 1975 around half of all graduates from Dutch basic vocational schools finished a 3-year program, the other half finished a 4-year program. In 1975 all 3-year programs were extended to four years. This was accompanied by an increase of the compulsory school leaving age with one year. The authors evaluate the long-term wage effects of this…

Initial findings of a 5-year project examining the effectiveness of a sexual abstinence education program in grades 5-8 are reported. Following implementation of the "Sex Can Wait (SCW)" program, differences between the "SCW" group and a comparison group favored "SCW" on knowledge, positive attitudes towards…