Few moments in the 11+ process generate as much parental anxiety as a mock exam result landing in an inbox or being handed home in a folder. A single number (65%, 82%, a standardised score of 108) arrives with almost no context, and parents are left guessing whether it's a reason for confidence or concern. The uncomfortable truth is that a raw mock score, on its own, tells you far less than most parents assume.
Why a raw percentage score Is nearly meaningless alone
A mock exam scored at 70% could represent excellent performance or a genuine concern, depending entirely on factors the percentage alone doesn't reveal:
I. How hard was the paper? Mock papers vary significantly in difficulty between providers, and even between different papers from the same provider. A 70% on a deliberately difficult paper can represent stronger performance than 85% on an easier one.
II. How was it scored? Some mocks report raw percentage correct; others convert to a standardised score adjusted for age and the specific paper's difficulty. These numbers aren't directly comparable to each other.
III. What's the comparison group? A percentage tells you nothing about how your child performed relative to the pool of children actually competing for the same places — which is what actually matters for a selective exam.
This is why experienced tutors and schools place far more weight on standardised scores and percentile rankings than on raw percentages, and why comparing your child's mock score to a friend's child's mock score from a different provider is close to meaningless.
Understanding Standardised Scores
Most reputable 11+ mock providers report results as standardised scores, where 100 represents the average performance of children of that exact age in the comparison group used. A standardised score accounts for: The child's exact age in months (a child born in September performing similarly to one born in August the following year still gets meaningfully adjusted for the age gap) and the specific difficulty of that paper, calibrated against a norm group.
A standardised score of 100 means average performance for that age group on that paper; scores meaningfully above 100 (often 110–115+ for competitive grammar and independent schools, though exact thresholds vary significantly by school and area) generally indicate a stronger position.
What "Percentile Rankings" actually tell you
Some mock providers also report a percentile ranking — for example, "your child scored in the 82nd percentile," meaning they performed better than 82% of the children in the comparison group. This is often more intuitively useful for parents than a standardised score alone, because it directly answers the question that actually matters: how does my child compare to the pool of children they're realistically competing against for a limited number of places?
It's worth checking exactly who the comparison group is, though — a percentile ranking against a general national sample means something different from a ranking against a group of children specifically also preparing intensively for the same competitive schools.
The trend matters more than any single score
A single mock result is a snapshot, not a verdict. What matters considerably more is the trend across multiple mocks over time. A child moving from the 60th to the 70th to the 78th percentile across three mocks sat a few weeks apart is showing genuine, meaningful progress — even if none of those individual scores looks spectacular in isolation.
Conversely, a single excellent mock result followed by a weaker one doesn't necessarily indicate decline; it may simply reflect normal variance, a harder paper, an off day, or fatigue. This is why building in multiple mocks across the December preparation phase, rather than relying on one, gives a far more reliable picture than any single result.
What to actually do with a mock result
Rather than reacting primarily to the overall score, the more useful exercise is a detailed breakdown of where marks were lost:
1. Identify the Error Type
For each incorrect answer, categorise the mistake:
- Genuine knowledge gap — the child didn't know how to approach the question at all
- Method error — the child understood the concept but applied the wrong approach
- Careless mistake — the child knew the correct method but made an execution error
- Time pressure — the child likely knew the answer but ran out of time or rushed
Each category needs a different response. A genuine knowledge gap needs targeted teaching; a careless mistake needs a slower, more careful approach; time pressure needs specific timed practice rather than more content coverage.
2. Look at section-level patterns, not just the overall score
A child scoring 75% overall might be scoring 95% on non-verbal reasoning and 55% on verbal reasoning — information the overall percentage completely obscures. Section-level breakdowns should always drive the next few weeks of revision priorities.
3. Compare against the previous mock, not just the target score
Progress relative to the child's own previous performance is often more informative than comparison to an abstract "good score" threshold, particularly in the earlier stages of preparation.
When a mock score genuinely is a cause for concern
While it's important not to overreact to a single result, some patterns genuinely do warrant closer attention and a change in approach:
- Consistent scores well below the target range across multiple mocks, with no upward trend over several weeks of focused practice
- A specific section consistently scoring far below the others despite dedicated practice time
- A declining trend across consecutive mocks rather than normal variance around a stable level
In these cases, it's worth revisiting the 11+ revision timetable itself (the issue may be the practice approach rather than the child's underlying ability) or considering whether additional tutoring support targeted at the specific weak area would help.
Managing the emotional side of mock results
How a mock result is discussed at home matters as much as the number itself. Children who sense that a mock score determines parental approval or disappointment tend to develop exam anxiety that actively harms their real exam-day performance, regardless of their underlying ability. Framing mocks explicitly as diagnostic tools — "this tells us what to practise next, not whether you're doing well as a person" — tends to produce both better emotional resilience and, ultimately, better real performance.
FAQ
What standardised score is considered "good" for a competitive grammar school? This varies significantly by school and area, but scores meaningfully above 110–115 are often associated with stronger competitiveness for popular schools. Always check specific historical thresholds for your target school or authority where available, since these vary.
Should I compare my child's mock score to other children we know? Only if they sat the exact same mock from the exact same provider under the same conditions — otherwise the comparison is close to meaningless, since different providers score and calibrate differently.
My child's mock score went down from last time — should I panic? Not immediately. Check whether the paper was harder, whether your child was tired or unwell, and look at the specific questions missed before concluding this reflects a genuine decline rather than normal variance.
How many mocks should my child sit before the real exam? Most families benefit from several mocks spaced a few weeks apart during the final preparation phase, allowing a genuine trend to emerge rather than relying on a single data point.
Should I tell my child their mock score? Most guidance suggests being transparent but framing the number as diagnostic information rather than a verdict on their ability or effort — this supports both honest goal-setting and emotional resilience.
