Pictures are widely used to elicit expressive language skills, and pictures must be established as parallel before changes in ability can be demonstrated by assessment using pictures prompts. Why parallel prompts are required and what it is necessary to do to ensure that prompts are in fact parallel is not widely known. To date, evidence of…

Some educational contexts almost mandate the application of multiple-choice (MC) testing techniques, even if they are deplored by many practitioners in the field. In such contexts especially, research into how well these types of item perform and how their performance may be characterised is both appropriate and desirable. The focus of this paper…