Practitioners are being placed under increasing pressure to evaluate the success of their outreach activities, both by government and by their own universities. Based in a reductionist doctrine of "evidence-based practice", there is a desire to demonstrate the effectiveness and value-for-money across activities that now account for…

School improvement is much sought and often claimed. However, it is questionable whether overall achievement in countries such as the USA or England has improved by any significant amount over thirty years. Several school improvement programmes have been claimed as successful, but evaluations, even where they exist, are generally poor: based on…

Demonstrates that the common procedure of using examination results as performance indicators based upon residuals from regression analysis when applied to aggregated data gives unstable results. Suggests that aggregate-level analyses are uninformative and that useful comparisons cannot be obtained without employing multilevel analyses using…