Splitting the gap between and within schools
Posted: Mon Jan 27, 2025 3:45 am
This results in a gap of 0.54 points between disadvantaged pupils and their peers.
Now let’s imagine that in both schools disadvantaged pupils achieved the same Progress 8 score on average as their peers.
This results in a reduced gap of 0.09 points china rcs data which arises because disadvantaged pupils were disproportionately more likely to attend the lower attaining school, School A.
In the hypothetical example above, 100% of the gap would be due to between-school differences (as there would be no within-school differences).
So let’s see what happens when we run the calculation on real data, using the national 2024 school-level Key Stage 4 data.
The calculation shown above can be expressed using some algebra that Professor Simon Burgess of Bristol University once shoved under my nose one wet afternoon a few years ago. I am grateful to him for doing so and for permitting me to use it here.
First, we split the Progress 8 gap into between-school and within-school parts for the last three years.
Now let’s imagine that in both schools disadvantaged pupils achieved the same Progress 8 score on average as their peers.
This results in a reduced gap of 0.09 points china rcs data which arises because disadvantaged pupils were disproportionately more likely to attend the lower attaining school, School A.
In the hypothetical example above, 100% of the gap would be due to between-school differences (as there would be no within-school differences).
So let’s see what happens when we run the calculation on real data, using the national 2024 school-level Key Stage 4 data.
The calculation shown above can be expressed using some algebra that Professor Simon Burgess of Bristol University once shoved under my nose one wet afternoon a few years ago. I am grateful to him for doing so and for permitting me to use it here.
First, we split the Progress 8 gap into between-school and within-school parts for the last three years.