DIVA is an online resource developed by David Deacon and James Stanyer of the Centre for Research in Communication and Culture, Loughborough University in collaboration with Business Intelligence And Strategy (B.I.A.S) and is supported Research England’s Higher Education Innovation Fund. Concerns about the diversity of media content and representation are concerned with questions of both supply and demand particularly when assessing the impact that different media environments have upon the plurality of discourse.
This website aims to provide a free tool that calculates diversity scores from data distributions. The site automatically calculates results for 7 diversity indices and derives confidence intervals and facilitates hypothesis testing on their basis. It is based on the six existing measures of qualitative variation: Simpsons’ D, HREL, the Index of Qualitative Variation (IQV), the Deviation from the Mode (DM), the Mean Difference Analog (MDA) and Herfindahl-Hirschman Index (HHI). It uses an empirical case study using content analysis data of mainstream news media coverage of three UK general elections which is described more fully in this working paper