There is a particular kind of confidence that comes from a good set of test results. A school posts its NAPLAN scores, the numbers look reasonable, and somewhere in the staffroom, there is a quiet exhale. The data has spoken. The students are tracking.
But what if the data is only telling you where your students were, not where they are right now?
This is the uncomfortable question that sits at the centre of how Australian schools currently approach reading comprehension. And it is a question worth sitting with, because the gap it describes is not dramatic or sudden. It is slow, quiet, and by the time it shows up on a standardised assessment, it has often already done its damage.
The Snapshot Problem
NAPLAN is administered in Years 3, 5, 7, and 9. That means a student can go two full years, sometimes more, without any formal, standardised measure of their reading comprehension growth. Two years is a long time in a child’s literacy development. Vocabulary expands. Inferencing skills either deepen or stall. The ability to synthesise information across a text either becomes second nature or remains a persistent struggle. None of this is visible in a snapshot taken every two years, and it certainly is not visible in the space between snapshots.
This is not a criticism of NAPLAN itself. The programme serves a legitimate purpose. But it was never designed to be a school’s sole diagnostic instrument for reading, and treating it as such creates a structural blind spot that most schools have not fully reckoned with.
The Grattan Institute’s 2024 report, The Reading Guarantee: How to give every child the best chance of success, made this plain in striking terms. According to the report, roughly one in three Australian school students, that is around eight children in a typical classroom of 24, cannot read proficiently. The cost to the economy over those students’ lifetimes is estimated at $40 billion. More confronting still, the report argues this is a preventable tragedy: most of these students are struggling not because of an inherent inability to read, but because the system around them has not detected the gap early enough, or consistently enough, to intervene.
What Happens in the Gaps
Consider a student who performs adequately in Year 3. Not exceptional, but adequate. By Year 5, that student’s comprehension has quietly plateaued — they can decode text, but they are not making inferences, not drawing conclusions across paragraphs, not evaluating an author’s intent. These are not trivial skills. They are the skills that determine whether a student can eventually engage with complex subject matter across science, humanities, and beyond.
The teacher may have a sense that something is slightly off. But without a structured, curriculum-aligned instrument to measure where the student sits against a national standard, that sense remains intuition. And intuition, however valuable, is not a reporting tool, and it is not an intervention trigger.
This is not a hypothetical scenario. It is the operating reality in classrooms where NAPLAN results function as both the beginning and the end of a school’s formal reading assessment calendar.
The long-term picture is sobering. According to the OECD’s PISA 2022 country report for Australia, 15-year-old students in 2022 scored at a reading level that would have been expected of 14-year-olds two decades earlier — a decline of 30 points in reading since Australia first participated in PISA in the early 2000s. That is not a pandemic anomaly. That is a generational drift, accumulating quietly, year by year, in the spaces between formal assessments.
The Assumption Worth Challenging
Australian schools have, quite understandably, built their assessment cultures around the instruments they are given. NAPLAN is mandated, resourced, and nationally benchmarked. It carries institutional weight. So it tends to anchor a school’s sense of where its students stand.
The assumption embedded in this is worth naming explicitly: that a biennial national test is a sufficient measure of ongoing comprehension development.
It is not, and the research has been saying so for some time.
A 2023 paper published in the Australian Journal of Social Issues — Are Australian students’ academic skills declining? Interrogating 25 years of national and international standardised assessment data — drew attention to a structural limitation that often goes unremarked: NAPLAN’s 2023 transition to a new online adaptive format effectively reset the data series. Continuous trend data from 2008 to 2022 can still be analysed, but a full comparable time series for the new format will not be available until 2029. That is another six years of navigating without a long-term national benchmark.
The implication is not that schools should abandon confidence in NAPLAN. It is that schools should not be dependent on it as the primary or sole instrument for tracking reading comprehension growth. Doing so means flying, at least partly, on instruments that refresh too infrequently and, during transition periods, cannot yet tell a complete story.
What More Frequent Assessment Actually Reveals
There is a practical and sometimes underappreciated reason why schools resist adding more assessment to an already stretched calendar: the results need to be actionable. Another test that produces another stack of reports, without a clear pedagogical direction, simply adds noise.
The case for more frequent, curriculum-aligned reading assessments is not a case for more testing. It is a case for better visibility — the kind that allows a classroom teacher or a learning support coordinator to see, in a given year, whether a Year 6 student’s comprehension is genuinely progressing or gently slipping, before that slip becomes a chasm that takes years to address.
When structured well, the data from purpose-built reading tests for school students can identify precisely where in the comprehension process a student is struggling — whether it is at the level of locating details, drawing inferences, or evaluating and synthesising information. That specificity is what transforms assessment data from a summary into a teaching signal.
The Equity Dimension
It would be incomplete to discuss the reading gap without noting that it does not distribute evenly.
The Grattan Institute report is clear on this: students from lower socioeconomic backgrounds, Indigenous students, and those in regional and rural areas face significantly greater barriers to reading proficiency. The same NAPLAN data the report draws on shows that for these cohorts, the proportion of students unable to read at grade level exceeds half.
This matters for assessment design because these are precisely the students who are most likely to fall through the gaps between biennial checkpoints. A student from a well-resourced family who slips in their comprehension development is more likely to have private tutoring, engaged parental oversight, and other compensating inputs. A student without those resources depends almost entirely on what the school can see and act on in time.
More frequent, structured reading assessment is therefore not merely a quality improvement for schools operating at the margins of good practice. For schools serving disadvantaged communities, it may be one of the most consequential equity interventions available.
A Different Way to Frame the Conversation
The conversation about reading in Australian schools has, for some years, been dominated by the how of teaching: phonics versus whole language, structured literacy versus balanced literacy. These are important debates. But they risk overshadowing a quieter and equally important question: how do we know if what we are teaching is working, and for which students, and when?
That question can only be answered with data that arrives more frequently than once every two years, and that is specific enough to connect to what happens in classrooms on a Monday morning.
Schools that have begun to build this into their annual assessment cycles — using reading comprehension assessments that sit alongside NAPLAN rather than waiting for it — tend to find two things. First, they surface students they did not expect to be struggling. Second, they stop being surprised by their NAPLAN results.
That second point is perhaps the more telling one. If NAPLAN results consistently surprise a school, the gap is not in the national testing programme. The gap is in the visibility between cycles.
The reading gap that schools do not see coming is not, in most cases, the product of neglect. It is the product of a system that was designed to take snapshots, being asked to function as a continuous feed. Closing that gap does not require a revolution in assessment philosophy. It requires a more honest reckoning with what a biennial test can and cannot tell us — and the willingness to fill in what it cannot.
The students sitting in classrooms right now, in the years between assessments, are not waiting for 2029, neither should the data that tracks their progress.
