The idea that validity should be considered a property of inferences, rather than of assessments, has developed slowly over the past century. In early writings about the validity of educational assessments, validity was defined as a property of an assessment. The most common definition was that an assessment was valid to the extent that it…

The accuracy of the results of the national tests in English, mathematics and science taken by 11-year olds in England has been a matter of much debate since their introduction in 1994, with estimates of the proportion of students incorrectly classified varying from 10 to 30%. Using live data from the 2009 and 2010 administration of the national…

Twenty years after the publication of "Inside the Black Box," the landmark review of formative classroom assessment, international education experts Christine Harrison and Margaret Heritage tackle assessment for learning (AfL) anew, with fresh insights gained from two decades of research, theory, and classroom practice. "The Power…

This article outlines the main assessment traditions in four countries -- England, France, Germany and the United States -- in order to explore the prospects for the integration of summative and formative functions of assessment during compulsory schooling. In England, teachers' judgments do feed into national assessments, at 7, 11, 14 and 16, but…

This article describes changes in the practice of two teachers, observed over an 18-month period, who were participating in a study intended to support teachers in developing their use of assessment in support of learning. The design of the intervention allowed each teacher to choose for themselves which aspects of their practice to develop.…

Defines a cycle of assessment and action, and a continuum from formative to summative assessments. Illustrates problems caused when one assessment must serve both formative and summative functions. Argues that separating the collection of evidence from its interpretation, or the interpretation of evidence from consequent action, helps alleviate…

Reports findings of retrospective study of tracked grouping (a fast track for top 25-30% of a cohort and a mixed track for the others) in a mathematics department in a greater London (England) coeducational comprehensive school. Outlines reasons for introducing tracking and explores its effects through teacher interviews and student data. (BT)

The mathematics achievement of a cohort of 955 students in 42 classes in six schools in London was followed over a 4-year period, until they took their General Certificate of Secondary Education examinations (GCSEs) in the summer of 2000. All six schools were regarded by the Office for Standards in Education (Ofsted) as providing a good standard…

This article provides an introduction to the TLRP Learning How to Learn Project and a context for the articles that follow in this special issue. The origins of the research, in a concern to investigate the organizational and network conditions that support innovation in teaching and learning, and in a perceived need to align research on pedagogy…

Teachers are smart people, so why does marking reduce them to stressed and soulless messes? Because in their hearts they know that students do not learn from it, and that drives them nuts. Researchers like Lorna Earl and Dylan Wiliam have looked closely at marking systems and have proven what teachers already know deep down: marking student work…

In their widely read article "Inside the Black Box," the authors demonstrated that improving formative assessment raises student achievement. Now in this article, they and their colleagues report on a follow-up project that has helped teachers change their practice and students change their behavior so that everyone shares responsibility…

As a mental health project officer, the author's work is underpinned by a belief that people who have mental health problems are as intelligent, talented and creative as anyone else, and deserve opportunities to reach their full potential. She actively seeks to persuade partner agencies across different sectors that the further education system is…