Research School Network: Reading in Secondary Schools Why Diagnostic Assessment Can’t Wait Until Year 8

The introduction of a statutory reading assessment in Year 8 has put reading firmly back on the agenda for secondary schools.

That is no bad thing.

It reflects something we see every day in classrooms: reading sits at the heart of learning. If pupils can read confidently and make sense of what they encounter, they can access the curriculum. When that becomes harder, everything else becomes harder too.

The Year 8 assessment is designed to give us a clearer picture of how pupils are reading at that point — particularly their fluency and comprehension.

But it also raises a more important question.

By the time pupils reach Year 8, how much should we already know?

The test will give us useful information. It will help identify where pupils may need further support and provide a consistent point of reference across schools.

But it is a snapshot.

It tells us how pupils are reading at one moment in time. It does not tell us how those patterns have developed, or how they have been experienced in classrooms over the previous year.

By Year 8, pupils have already encountered a wide range of texts across subjects — science explanations, historical sources, exam questions, extended prose. The demands of reading have increased, often quite sharply.

So the test is not the starting point.

It is a checkpoint.

One of the key shifts we need to make is recognising that reading is not finished at the end of primary school.

The EEF’s work on reading makes this clear. Reading depends on the interaction between word recognition and language comprehension, alongside vocabulary and knowledge.

As pupils move through secondary school, the balance of that work changes. Texts become denser. Vocabulary becomes more specialised. Sentences become more complex.

Jessie Ricketts’ research highlights how comprehension, in particular, draws heavily on vocabulary and language knowledge as pupils get older. This means that reading is not just about decoding accurately — it is about making meaning in increasingly demanding contexts.

That is why reading remains a live issue in Key Stage 3, not a legacy issue from Key Stage 2.

If Year 8 is a checkpoint, then diagnostic assessment needs to happen much earlier — and much more routinely.

This is not about adding more tests.

It is about sharpening how we understand reading.

Formal assessments can help. Tools that break reading into different elements — such as vocabulary, decoding, and comprehension — can give us a more detailed picture than a single overall score.

But the most important diagnostic work happens in lessons.

It is in how teachers notice where meaning breaks down.
It is in how they respond — explaining, modelling, revisiting, adapting.
It is in how departments think carefully about the texts they use and the support pupils might need to engage with them.

In that sense, diagnostic assessment is not something separate from teaching. It is part of it.

When we look at reading data, it can be tempting to focus on intervention. Intervention has an important role. Some pupils will benefit from additional, targeted support. But it cannot be the whole answer.

Where a sizeable proportion of pupils find aspects of reading challenging, this is not something that can be addressed only in small groups. It needs to be reflected in what happens across the curriculum.

The EEF guidance is clear on this point: high-quality teaching is the foundation for improving literacy.

In practice, this often comes down to quite deliberate choices:

>taking time to introduce and revisit key vocabulary

> modelling how to approach a complex text or question

> making the structure of a sentence or paragraph explicit

> giving pupils the chance to read, talk, and think through ideas

These are not new ideas. Many teachers already do them well. The challenge is making them consistent and purposeful across subjects.

Assessment becomes most useful when it informs action. For example, where assessments highlight differences between vocabulary knowledge and comprehension, that might prompt a stronger focus on language and word meaning in lessons. Where fluency appears to be a barrier, it may lead to more structured opportunities for pupils to practise reading aloud or revisit texts. The key is that assessment does not sit separately from teaching. It feeds into it.

The Ofsted framework reinforces the idea that reading is central to curriculum access. Pupils need to be able to read fluently and understand subject-specific language in order to engage fully with what is being taught.

This places reading firmly within the domain of all teachers. Not as an additional responsibility, but as part of the work of teaching a subject well. Each subject has its own texts, its own vocabulary, its own ways of using language. Supporting pupils to access that language is part of helping them think like a historian, a scientist, or a geographer.

The Year 8 assessment, then, is useful. But it should not be surprising.

If we have strong diagnostic processes in place — early assessment, careful attention to reading in lessons, and a shared understanding of what pupils need — then the outcomes in Year 8 should largely confirm what we already know.

And more importantly, they should reflect work that is already underway. The aim is not to respond to reading once it becomes visible in data. It is to build a picture of reading as pupils move through the school, and to act on that understanding as part of everyday teaching.


If we can do that, then the Year 8 test becomes what it was always intended to be: not a starting point, but a confirmation that the right things are already in place.