School assessment covers several different activities with different purposes, and parents frequently encounter them without the distinction being explained.
Formative and summative
Formative assessment happens during learning and informs what to teach next.
Summative assessment measures what has been learned at a point.
Which are different activities, and treating formative assessment as a judgement produces anxiety about something intended as a working tool.
Evidence for formative assessment improving learning is reasonably strong, and it depends on the information actually being used to adjust teaching.
Standardised tests
Measure performance against a defined standard or against a comparison population.
Which allows comparison across schools and over time, and it constrains what can be measured to what tests measure well.
Scores carry measurement error, which means a single score is an estimate rather than a fact, and confidence intervals exist and are rarely reported to parents.
Age-standardised scores
Adjust for a child's age within the year group.
Which matters because the youngest children in a year can be nearly a year younger than the oldest, and that difference is substantial at young ages.
Relative age effects have been documented consistently, affecting attainment, special needs identification and sports selection.
The effect diminishes with age and does not disappear entirely.
What league tables measure
School performance measures are heavily influenced by intake.
Which means raw attainment measures largely reflect who attends rather than what the school adds.
Progress measures, comparing outcomes against prior attainment, are intended to address this and have their own limitations.
Comparing a school's raw results without considering intake is the most common misreading of published data.
Teaching to the test
A documented consequence of high-stakes accountability.
Which narrows curriculum toward what is assessed and can inflate scores without corresponding learning gains.
Evidence for this comes from cases where scores rose on the accountability test while remaining flat on independent measures.
Special educational needs
Identification processes vary by jurisdiction and generally involve assessment against defined criteria.
Which determines access to support, and the process is frequently slow and contested.
Parents have rights within these processes that vary by jurisdiction, and organisations providing free advice on them exist in most countries.
Raising a concern early, in writing, and asking what assessment will be done is the practical starting point.
What to ask
What specifically a child can and cannot do, rather than a level.
What is being done to address any gap.
How progress will be measured and when it will be reviewed.
Which produces actionable information, and teachers can generally answer all three.
The limits
Assessment measures what it measures.
Which excludes a great deal that matters — persistence, curiosity, collaboration, kindness — and their absence from measurement does not mean they are absent from the child.
Reports and parents evenings
Time is limited, which means preparing specific questions produces more than a general conversation.
Asking what a child does well, what they find hardest, and what would help at home covers most of what is useful.
Which also signals that you want information rather than reassurance, and teachers generally respond to that.
Comparing children
Attainment data invites comparison, which is the least useful thing to do with it.
Progress relative to a child's own starting point carries more information about how they are doing than position relative to peers.
Which is what schools generally track internally, and it can be asked for.
Transitions
Moving between schools is associated with a dip in attainment in several studies.
Which is expected and generally temporary, and information passing between schools varies in quality.
Ensuring the receiving school knows about any support needs, in writing, is worth doing directly rather than assuming transfer.
Screening and diagnosis
Schools use screening tools for reading, mathematics and other areas.
Which indicate that further assessment may be warranted rather than diagnosing anything.
Formal assessment for specific learning difficulties requires appropriately qualified professionals, and waiting times are frequently long.
Which means asking what support is being provided while any assessment is pending is a practical question, since support should not wait for a label.
Attendance
Associated with attainment and used as an accountability measure.
Which has produced pressure that can conflict with genuine health needs and with school-related anxiety.
Persistent difficulty attending is frequently a signal of an underlying issue rather than a behaviour to be enforced, and it warrants exploration.
Home learning environment
Associated with outcomes independently of school in several studies.
Which includes reading, talking, and activities rather than formal teaching.
What parents can ask for
Copies of assessments, explanation of what scores mean, and the school's plan.
Which are reasonable requests and are frequently not made because parents do not know they can.
Putting requests in writing creates a record and generally produces a fuller response.
Which is worth doing for anything that matters rather than only for disputes.