Purpose: The aim of this study was to examine the means by which principals achieve an impact on student achievement. Research Design: Through the application of structural equation modeling, a mediated-effects model for school leadership was tested, using data from 97 secondary schools in the Netherlands. Findings: The results showed a small…

In general, studies on gender and mathematics show that the advantage held by boys over girls in mathematics achievement has diminished markedly over the last 40 years. Some researchers even argue that gender differences in mathematics achievement are no longer a relevant issue. However, the results of the Trends in Mathematics and Science Study…

A sample of 815 Dutch pupils from 49 classes was followed from age 6 (Dutch Grade 3) through age 11 (Grade 7) to estimate growth trajectories for pupils with different socio-ethnic backgrounds. The results indicate that the disadvantage for spelling already present in Grade 3 increases more strongly for Dutch low-socioeconomic status (SES) pupils…

The research findings presented in this paper illustrate how the "value added" of schooling can be assessed empirically using cross-sectional data. Application of the regression-discontinuity approach within a multilevel framework produces both an estimate of the absolute effect of 1 year schooling and an estimate of the variation across…

School quality care has become important in many Western countries. A number of self-evaluation instruments have been developed in response. The goal of these instruments is improving the quality of education. One such system, ZEBO, was developed for performing quality assessment in Dutch primary schools. The use of this self-evaluation instrument…

This article provides an illustration of how multilevel modelling, which is the standard method for assessing the "school effect" in school effectiveness research, can be combined with the regression-discontinuity approach. While multilevel modelling yields only estimates of relative school effects (differences between schools), the…

This article reports the findings of an analysis into the effect of one year's schooling for 15-year-olds in England on reading performance, reading engagement, and reading activities. The analyses were done on PISA 2000 data by applying a regression discontinuity approach within a multilevel framework. The effect of schooling is estimated as the…

Over the past 2 decades, a large number of countries have been engaged in the decentralization of decision-making to schools. Although the motives and incentives for school autonomy are often diverse, it is commonly believed that decentralization will enhance the quality of schooling. Based on a secondary analysis of data from OECD's Programme for…

This paper reports the results of an investigation into the stability of school effects in Dutch secondary education across both years and subjects. The following research questions were addressed: (1) What percentage of the total variance in student achievement per subject can be attributed to differences between schools and to what extent are…

This paper reports the results of an investigation into the relationship between school size and achievement. The study examined the impact of school size on mathematics achievement in Dutch, Swedish, and American secondary education and on science achievement in the Netherlands. The following research questions were explored: (1) Is school size…

Reviews selected research literature on the size of school effects compared with teacher effects. Analysis does not confirm general impression that teacher effects outweigh school effects. Discusses reasons for this conclusion. (Contains 31 references.) (PKP)

Compares elementary and secondary schools in the Netherlands with respect to the consistency of achievement scores across subjects at individual and school levels. The analysis shows less consistency at the student level within schools. At the school level, consistency appears lower in secondary education. (SLD)

Investigates the relationship between school size and science and mathematics achievement in Dutch, Swedish, and American secondary education. The analysis revealed little evidence of any school-size effects on achievement in any of the three countries, possibly because school size and curriculum comprehensiveness are not strongly related in these…

Background: The effect of assisted reproduction technology (ART) on language development is still unclear. Moreover, different techniques are introduced at rapid pace and are not always accompanied by extensive follow-up programmes. Aims: To investigate the language development of 3-10-year-old children born following ART using intracytoplasmic…

Methods are presented for comparing grades obtained in a situation where students can choose between different subjects. It must be expected that the comparison between the grades is complicated by the interaction between the students' pattern and level of proficiency on one hand, and the choice of the subjects on the other hand. Three methods…