What is the purpose of GL assessments in schools?

GL assessments serve two genuinely different purposes in schools. Some, like the GL Assessment 11 plus papers, work as entrance exams, giving grammar schools a fair, standardised way to select academically able children, and they currently power around 80 percent of grammar school entrance tests in England. Others, such as CAT4, the Progress Test in English and the Progress Test in Maths, are used inside ordinary primary and secondary schools throughout the year, completely separate from grammar school admissions, to track attainment, measure underlying reasoning ability, and flag where a child might need extra support or a bigger challenge. Both purposes rely on the same core idea, standardised, nationally benchmarked scores that let a school compare a child's performance fairly against children the same age across the country. 

You have probably heard the name GL Assessment in connection with the 11 plus, but some schools also use it for tests that have nothing to do with grammar school at all. Here is a clear, honest answer to what the purpose of GL assessments in schools actually is. 

What is GL Assessment?

GL Assessment, formerly known as Granada Learning, is one of the UK's leading providers of educational assessments. It is a company, not a single test, and it produces a genuinely wide range of different assessments used across English schools for very different reasons.

This is exactly where a lot of confusion for parents starts. If your child mentions sitting a GL assessment at school, it is worth knowing that this does not automatically mean they are being tested for grammar school entry. GL Assessment's name covers both the 11 plus papers used for selective admissions and a separate suite of tools used inside mainstream schools purely to track learning.

The two different purposes of GL assessments in schools

Understanding these two purposes clearly is genuinely the most useful thing a parent can take from this whole topic.

1. Selecting students for grammar school

This is the purpose most parents searching for GL Assessment are actually interested in. The GL Assessment 11 plus is the UK's most widely used admissions test for state grammar schools, currently powering around 80 percent of grammar school entrance exams across England, including major consortia in areas such as Kent, Buckinghamshire, Birmingham and the West Midlands.

The purpose here is fairness and consistency. Rather than each grammar school inventing its own test from scratch, using an established, statistically robust provider like GL Assessment gives schools an objective, unbiased basis for admissions decisions, built on papers that have been trialled and refined over many years.

Depending on the region, the 11 plus typically covers up to four subjects, English, Maths, Verbal Reasoning and Non-Verbal Reasoning, though the exact combination varies between areas. Some consortia test all four, while others focus on just two or three.

2. Tracking progress and potential in mainstream schools

Away from grammar school admissions entirely, GL Assessment also produces a range of tools that ordinary primary and secondary schools use purely to understand how their pupils are doing, and where extra help or challenge might be needed.

Why schools combine these tools. Many schools compare CAT4 results, which measure underlying ability, against PTE or PTM results, which measure actual attainment. This comparison, sometimes called triangulation, can reveal a child working well above what their attainment scores alone would suggest, or flag a potential barrier to learning that might otherwise go unnoticed. 

Schools typically use these assessments once or twice a year to inform target setting, curriculum planning, and whether a child might benefit from additional support or a greater level of challenge in class.

Why schools trust GL Assessment so widely

GL Assessment's scale and long track record are a big part of why so many schools rely on it, for both admissions and internal tracking.

• Papers are statistically reliable, with CAT4 alone standardised on 25,000 students and reverified every year against around a quarter of a million.

• Consistent question formats make preparation genuinely learnable, rather than unpredictable from one year to the next.

• Detailed reporting gives schools and, where relevant, parents, a clear picture beyond a single number.

• Data can be fed into wider systems, such as FFT Aspire, to help set realistic GCSE targets years in advance.

What this means for your child's 11+ preparation

If your child is preparing for grammar school entry, the practical takeaway is straightforward. GL Assessment 11 plus papers follow a consistent, well understood format, which means structured, targeted preparation genuinely works, far more reliably than trying to guess what an unfamiliar test might contain.

Understanding that the pass mark is set locally, not nationally, also matters. A score that comfortably clears one region's threshold might fall short in a more competitive area, so knowing your specific target school's qualifying score, rather than a generic national figure, should shape how preparation is planned from the outset.

How Pass 11 Plus Grammar helps prepare children for GL Assessment 11+ papers

Our approach to 11 plus tuition is built specifically around how GL Assessment actually works, not generic exam preparation. Every session covers the same four subjects the real test uses, English, Maths, Verbal Reasoning and Non-Verbal Reasoning, taught in a structured, engaging way.

1.  Start early, ideally Year 3 or Year 4

The children who score highest are rarely the ones who crammed for six weeks. They are the ones who built skills steadily over time, with genuine understanding rather than memorised patterns.

2. Give Verbal and Non-Verbal Reasoning real attention

These two subjects catch most children off guard, since neither is taught as part of the ordinary school curriculum. Dedicated, structured practice makes a genuine difference here.

3. Practise under real timed conditions

Working through 11+ past papers and sitting 11 plus mocks builds the pace and composure needed for the real GL Assessment format, well before it counts.

4. Get support that targets your child's specific gaps

A good tutor does not just hand out more practice papers. They identify exactly where a child's score is being held back, then teach the underlying skills needed to close that gap.

Our 11 plus intensive summer course is a genuinely useful option for a concentrated push, and our free 11+ practice papers are a good starting point for families beginning preparation at home.

If your family is nearby, our 11 plus tutors in Birmingham have over 30 years of experience preparing children specifically for the GL Assessment, and would love to help your child build genuine, lasting confidence with it.

Final Thoughts

Understanding what GL assessments are for is the first step. Knowing exactly where your child stands against them is the next one, and that is where a genuine, honest assessment makes all the difference.

At Pass 11 Plus Grammar, our tutors prepare children specifically for GL Assessment papers, with a 97% success rate and more than 1,000 children placed in grammar schools along the way. Our sessions are built entirely around the real test, not a generic approximation of it.

Get started today and see what focused, expert 11+ preparation can really do for your child's confidence.