Last reviewed on 24 May 2021
School types: All · School phases: Primary
Ref: 5964

Understand how the 2018 Key Stage 1 to 2 progress measure is calculated, where you can access your progress scores, and what they mean.

This article is based on the DfE's 2018 primary accountability guidance.

How pupils' progress scores are calculated 

1. KS1 teacher assessment levels are converted to point scores

To begin with, a pupil's teacher assessment levels in reading, writing and maths at Key Stage (KS) 1 are converted into point scores. 

The conversions for teacher assessment levels 1 to 4 are shown on page 17. Point score conversions for pupils assessed as working below level 1 are outlined on page 19.

2. KS1 point scores are used to calculate a KS1 average point score (APS) 

The pupil's KS1 point scores in each subject are then combined to get the pupil's KS1 APS. 

The APS is weighted 50:50 for English and maths. English is made up of reading and writing (page 17 to 18).

Pupils are put into prior attainment groups according to their KS1 APS. You'll find the