How TestAS Scoring Works: TestAS Score, Percentile Rank and What Counts as Good

Most people expect a test score to mean "how many questions did I get right". TestAS does not work that way. Your certificate shows where you stand compared with other test takers, on a fixed scale, and the scale is different for the digital and the paper-based format.

Understanding this matters for three reasons. It tells you what score your university really asks for, it explains why your practice percentage is not your TestAS score, and it helps you decide whether a retake is worth it.

This guide is based on the official information from g.a.s.t., which runs TestAS, including its published conversion chart from August 2024.

The two scales at a glance

	Digital TestAS	Paper-based TestAS
Name of the score	TestAS Score	Standard Score
Range per module	0 to 200	70 to 130
Middle of the scale	100	100
Average range	50 to 150	90 to 110
Percentile rank	1 to 100	1 to 100

The digital TestAS Score (0 to 200)

When g.a.s.t. moved TestAS to computers, it also redesigned how results are reported. The digital certificate shows:

• a TestAS Score for the Core Module (0 to 200),
• a TestAS Score for your subject module (0 to 200),
• an overall score (0 to 400), and
• a percentile rank (1 to 100).

On each module scale, 100 is the centre. Scores from 50 to 150 form the average range, which g.a.s.t. splits into a lower and an upper average half around 100. A score above 150 shows above-average performance.

The top of the scale is deliberately capped. Only about the top 2% of test takers receive 200. g.a.s.t. explains that separating people inside that very small group would depend on just a handful of items, sometimes answered correctly by chance, so the scale does not try to. In practice this means 200 is not a realistic target for most applicants, and a score in the 150s or 160s is already a strong result.

The paper Standard Score (70 to 130)

The paper-based TestAS uses the older Standard Score, which runs from 70 to 130 with 100 in the middle. The range from 90 to 110 describes average performance.

Because the paper scale is narrower, the same number means a very different result on each format. A 110 on paper is a good result. A 110 on the digital scale is only slightly above the middle.

Converting between the two

g.a.s.t.'s official chart converts paper Standard Scores into digital TestAS Scores. The relationship is simple: between Standard Scores of 80 and 120, every Standard Score point is worth 5 TestAS Score points.

Paper Standard Score	Digital TestAS Score
70 to 80	0
85	25
90	50
95	75
100	100
105	125
110	150
115	175
120 to 130	200

This is also how universities compare applicants who took different formats. If your target programme states its requirement on the old scale, the chart tells you the digital equivalent.

What the percentile rank tells you

The percentile rank shows what share of test takers scored the same as you or lower. A percentile rank of 60 means 60% of test takers did as well as you or worse, and 40% did better.

The percentile rank is often the easiest number to explain to someone else, because it does not depend on which scale you are looking at. Some universities may also state their requirements as a percentile rank rather than a score.

Why your practice percentage is not your TestAS score

Suppose you answer 15 of 20 Latin Squares correctly in practice. That is 75%, but it does not translate into a fixed TestAS Score, for two reasons.

First, TestAS is compared against other test takers. Your score depends on how your performance compares with everyone else's, not on a fixed percentage cut-off. The same number of correct answers can land in a different place depending on the test form and the group.

Second, practice items are not the real exam. No practice set, including ours, reproduces the exact difficulty mix of a real TestAS form. A practice set that is slightly easier than the real one will make your percentage look better than your real standing.

So treat any conversion from practice results to a TestAS Score as a rough range, never a prediction. That is exactly how our free TestAS score calculator presents it: a range on the official 0 to 200 scale, clearly labelled as a practice estimate.

What counts as a good TestAS score?

There is no universal pass mark. Each university that uses TestAS decides how to use it, for example:

• as a minimum requirement (a score or percentile you must reach),
• as one factor in a ranking of applicants, or
• as a way to improve an application with a weaker school grade.

Here is a practical way to read your digital result:

Digital TestAS Score	What it means
Below 50	Below the average range
50 to 100	Lower half of the average range
100 to 150	Upper half of the average range
150 to 199	Above average
200	Top 2% of test takers

Before you set a goal, find the exact requirement on your target programme's admissions page. If it is not stated, ask the international office which score or percentile they consider competitive.

How to use this when you prepare

Knowing that TestAS is scored relative to other test takers changes how you should practise:

1. Practise across all difficulty levels. If you only drill items you already find easy, your practice accuracy rises but your real standing barely moves. The items that separate an average result from a strong one are the harder ones.
2. Track accuracy by difficulty, not only overall. 90% on easy items and 40% on hard ones tells you exactly where your next hours should go.
3. Protect every subtest. The Core Module score combines all three subtests, so one weak subtest pulls the whole module down. A balanced profile usually beats one excellent and one poor subtest.
4. Rehearse with the real time limits. Your score only counts what you answer correctly within the time. Running out of time is a scoring problem, not only a stress problem.

g.a.s.t. itself notes that TestAS mainly measures abilities that cannot be trained in the short term. Familiarity with the item types, a clear method for each subtest and good timing still make a real difference, because they stop you from losing points you should have won.

Your certificate after the exam

• Results appear in the test taker portal about three weeks after a digital exam and about four weeks after a paper exam.
• The certificate can be used electronically or printed, and you can download it again at any time from the portal.
• According to g.a.s.t., the certificate does not expire.
• If you took TestAS more than once, results are not combined. You choose which certificate to submit.
• Universities can check that a certificate is genuine. If you apply through uni-assist, you can give them your TestAS user number or upload the certificate.

Summary

The digital TestAS Score runs from 0 to 200 per module, with 100 in the middle and 50 to 150 as the average range. The paper Standard Score runs from 70 to 130. Both come with a percentile rank, and an official chart converts between them. Find out what your target programme asks for, translate it to the scale you will sit, and practise with that goal in mind.

Sources: evaluation of the digital TestAS, official conversion chart (PDF), FAQ results and certificates, interpretation of test results.