58 research outputs found
Understanding Uncertainty in School League Tables
In England, contextual value added (CVA) school performance tables are published annually by the government. These tables present statisticalāmodelābased estimates of the educational effectiveness of schools, together with 95 per cent confidence intervals to communicate their statistical uncertainty. However, this information, particularly the notion of statistical uncertainty, is hard for users to understand. There is a real need to make school performance tables clearer. The media attempt to do this for the public by ranking schools in soācalled āschool league tablesā; however, they invariably discard the 95 per cent confidence intervals and, in doing so, encourage the public to overāinterpret differences in schools' ranks. In this paper, we explore a simulation method to produce simple graphical summaries of schools' ranks that clearly communicate their associated uncertainty
runmixregls: Stata module for fitting mixed-effects location scale models using the MIXREGLS software package
Cross-classified multilevel models using Stata: How important are schools and neighbourhoods for studentsā educational attainment?
- ā¦