Randomised controlled trials (RCTs) can be at risk of bias. Using data from a RCT, we considered the impact of post-randomisation bias. We compared the trial primary outcome, which was administered blindly, with the secondary outcome, which was not administered blindly. From 44 schools, 522 children were randomised to receive a one-to-one maths…

This critical and reflective literature review examines international research published over the last decade to summarise the different kinds of measures that have been used to explore cognitive load and critiques the strengths and limitations of those focussed on the development of direct empirical approaches. Over the last 40 years, cognitive…

Comparability between different educational qualifications is an important issue within policy discourse in the UK. In this context, the comparability of qualification demands has been explored through the use of expert human judgement. The involvement of human judgement in estimating assessment demands has consequences for methodology. This…

In as much as educational research is concerned with individual student assessment and development, it is surprising that single-subject designs are not more readily utilized in classroom-based action research. The purpose of this article is to emphasize benefits of single-subject research in the K-12 setting, given that teachers teach and assess…

This paper presents the foundations of contrast analysis as a method for examining change. Contrast analysis is a relatively high-powered, simple, and informative procedure for evaluating hypotheses about specific patterns of change. This paper reviews the general purpose and nature of contrast analysis, it discusses some of the advantages of…

In his introduction to this special issue, Roger Millsap has given an excellent summary of its contents. This eases our task considerably. In what follows, we first present some general observations about growth curve modeling of longitudinal data. Among other things, we will address the criticism that the popular latent growth curve model may…

While confirmatory latent growth curve analyses provide procedures for testing hypotheses about latent growth curves underlying data, one must first derive hypotheses to be tested. It is argued that such hypotheses should be generated from a combination of theory and exploratory data analyses. An exploratory components analysis is described and…

This article reports on school staff's and occupational health nurses' development project (2001-2004), which aimed to promote school staff's occupational wellbeing by activities to maintain the ability to work in 12 comprehensive schools in Finland. The effects of the project were evaluated based on a follow-up study questionnaire presented to…

This research aimed at developing a methodological framework to investigate the alignment of the Lebanese national math exam tests with the curriculum at the middle school level, during the transitory period of a major curricular reform. The focus is on exploring the characteristics of an "assessment culture" set by the national exams during the…

Instructional conceptions are students' ideas about relationships between instructional features of a learning environment or specific instructional interventions on the one hand, and learning on the other (Lowyck, Elen, & Clarebout, 2004). A variety of methods have been used to assess such conceptions. None of these instruments are satisfactory.…

This study analyzes the perceptions of Turkish and American middle school students of school and schooling by examining the metaphors they produce. A total of 18 American and 24 Turkish students were interviewed as part of this study. The results show differences in the participants' perceptions of schooling by culture. Turkish participants…

It is of major importance to use psychological tests and questionnaires that are carefully constructed so that their reliability and validity can be determined in different (sub)cultures (Campbell & Tirri, 2004). However, a necessary prerequisite for this is the development of solid conceptual constructs. Otherwise, the researcher runs into the…

The discussion of the gap between theory and practice has a long tradition in educational psychology and especially in research on learning and instruction. Starting with a short analysis of more or less elaborated approaches focusing on this problem, a complex procedure called "integrative research approach", specialized in reducing the gap…

The research project presented in this article was set in the Swedish school context and carried out on a set of compulsory national tests for English, Swedish, and mathematics used at the end of compulsory school. The aims were: (a) to gain a deeper knowledge of the internal structure of the tests and (b) to separate individual performance from…

This paper discusses the contribution of international studies on educational effectiveness in the light of 4 papers presented at the new ICSEI Methodology of Research and Effectiveness (MORE) Network in Barcelona in January 2005 and published in this issue of the journal. A brief historical overview is used to provide a context for these papers…