This issue's featured article, "Assessment and Learning: Fields Apart" (Baird, Andrich, Hopfenbeck, and Stobart 2017) raises issues that are of basic importance for the disciplines of assessment and teaching and learning theory. In this commentary, Alex Scharaschkin restricts his remarks to a few areas. He considers the idea of a…

There has long been the suspicion amongst staff in Art & Design that the ratings given to their subject disciplines in the UK's National Student Survey are adversely affected by a combination of circumstances--a "perfect storm". The "perfect storm" proposition is tested by comparing ratings for Art & Design with those…

Paul Newton (2010), with his characteristic concern about theory, has set out two different ways of thinking about the basis upon which equivalences of one sort or another are established between test score scales. His reason for doing this is a desire to establish "the defensibility of linkages lower on the continuum than concordance."…

The article "Thinking About Linking" by Newton (2010) presents a novel philosophical perspective on the way that educational assessments should be linked. Newton starts by describing the linking framework as it was characterized in various publications and identifies a cross-cultural dimension in the definitions and uses of test…

A new judgemental method of equating raw scores on two tests, based on rank-ordering scripts from both tests, has been developed by Bramley. The rank-ordering method has potential application as a judgemental standard-maintaining mechanism, because given a mark on one test (e.g. the A grade boundary mark), the equivalent mark (i.e. at the same…

Background: Validity is a central concern in any assessment, though this has often not been made explicit in the UK assessment context. This article applies current validity theorising, largely derived from American formulations, to national curriculum assessments in England. Purpose: The aim is to consider validity arguments in relation to the…

Considers issues surrounding the use of differentiated examinations. Discusses how differentiation may be provided, the wording of questions, and how marks should be given. Highlights some pitfalls of using this approach. Concludes that, although differentiated examinations are possible, they will not always meet the needs of the end range of test…

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…