Portsmouth SATs results are out - here's how your child's school performed

The scores are calculated by comparing the Key Stage 2 assessment results of pupils with the results of pupils in schools across England who started with the same assessment results at the end of Key Stage 1. Zero represents that a school’s children have on average progressed exactly in line with the national progress of children of the same ability. On a sliding scale, the more positive a score the better than average progress has been attained whilst the greater the negative value the further from average progress has been achieved. Each subject has a score range which is classed as ‘well below average’ through to ‘well above average’.