These reports can only be generated when a school is undertaking their second or subsequent audit since they show percentage change in attitudes from a prior set of PASS measures.
They represent an extremely cost-effective way of evaluating impact, refining school development planning, transparently demonstrating value-added and so on.
Impact evaluation reports indicate the percentage change in attitudes across all nine PASS factors broken down to include whole school change and breakdowns by gender, ethnicity and year group. You can find out more at: http://w3insights.pass-survey.com/impact_evaluation.htm