Edited 10:21 on 13th December to include a link to previous research into delayed admissions

One of the things we’ve noticed working with Key Stage 1 data since the pandemic is an increase in the number of pupils taught in a year group that does not correspond with their chronological age, for instance pupils of Year 3 age being taught in Year 2.

In this article, we examine how the number of pupils taught out of year group has been changing over the last few years.

Data

We use data from the January School Census from 2008/09 to 2022/23.

We calculate a pupil’s chronological age as at the previous August using their year and month of birth. For example, a pupil born in September 2016 would have been 5 at the start of the 2022/23 academic year. This corresponds with Year 1.

Dates of birth in School Census aren’t always observed without error. It’s not unheard of to see pupils apparently in their 20s attending primary schools.

Assuming data errors are of similar volume across years, we identify pupils who are educated out of year group. In some cases, pupils will be taught alongside older pupils. But, for the most part, they will tend to be older than their classmates.

We limit the analysis to pupils of compulsory school age, i.e. aged 4 to 15 at the start of the school year.

Results

In January 2023, there were almost 40 thousand pupils taught out of year group. This is composed of 38 thousand pupils who were older than the year group expected given their chronological age, and just under 2 thousand who were younger than the year group in which they are taught.

The number of older pupils has more than doubled since 2017.

The size of the compulsory age school population has increased over the period shown in the chart, from 6.75 million in 2009 to 7.71 million in 2023.

We therefore represent the data as the percentage of the total number of pupils.

This shows an increase in the number of older pupils from 0.2% in 2017 to 0.5% in 2023.

It is much more common for primary-age pupils, particularly those in Reception to Year 2, to be taught out of year group.

Finally, we show some key characteristics of pupils taught out of year group compared to all other pupils.

Pupils who are older than the year group in which they are taught are far more likely to have been born in July or August than other pupils and more likely to have an Education, Health and Care plan (EHCP). It also appears to be the case that pupils who are younger than the year group in which they are taught are also more likely to have an EHCP.

Summing up

The last few years have seen an increase in the number of pupils taught out of year, particularly pupils who are older than the year group in which they are taught.

This is more common at primary, particularly Reception to Year 2, than at secondary.

The trend in increasing numbers appears to have started before the Covid-19 pandemic. However, it has since continued to increase. As comments below note, the increase began to occur following publication of guidance on the admission of Summer born pupils.

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