Course: Communication Research Methods. Objectives: This activity provides students with an experiential introduction to measurement theory and the methods for assessing measurement reliability. First, multiple measurements of a person's height are interpreted according to classical test theory. Second, the measurement of human height is used as…

Concept inventories hold tremendous promise for promoting the rigorous evaluation of teaching methods that might remedy common student misconceptions and promote deep learning. The measurements from concept inventories can be trusted only if the concept inventories are evaluated both by expert feedback and statistical scrutiny (psychometric…

The aim of this paper is to demonstrate the dramatic consequences the application of cut-off points can have in the practice of identifying gifted individuals. The paradoxical attenuation effect describes the frequent situation in which measurements of the gifts and talents individuals possess are lower than their true values. However, in…

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…