Saville Assessment: What to Expect on Swift Aptitude and Wave Personality Tests

If you have been invited to a Saville Assessment, you are most likely facing one of two things — a Swift aptitude test or a Wave personality questionnaire. This guide explains what each one is, how long it takes, and how it is scored, so you know what is coming before you start.

Quick answer: Saville Assessment publishes two main candidate-facing families. Swift tests are timed cognitive aptitude tests that blend two or three sub-tests such as verbal, numerical, and diagrammatic reasoning into one short sitting. Wave is a longer personality questionnaire that measures your motives, talents, and preferred working style rather than right or wrong answers.

Saville Assessment is a UK-based occupational-psychology consultancy, now part of the SHL group, that produces pre-employment psychometric tests used across graduate and professional hiring. Its assessments fall into two groups:

• Swift aptitude tests measure cognitive ability across areas such as verbal, numerical, diagrammatic, abstract, error-checking, mechanical, and spatial reasoning.
• Wave personality questionnaires measure behaviour, motives, and preferred culture.

These are not coding tests, game-based tasks, or video interviews. One common source of confusion is worth flagging early. Independent guidance notes that the generic Saville invite email often does not say which test type is coming, so candidates sometimes prepare for the wrong one. If your invite is vague, ask the employer which specific test you will take.

Swift is a blended format. Instead of one long test, it combines two or three short, separately timed sub-tests in a single sitting. Vendor examples give a sense of the pace:

• Swift Executive: verbal (6 minutes), numerical (6 minutes), and abstract (6 minutes).
• Swift Analysis: verbal, numerical, and diagrammatic, each at 6 minutes.
• Swift Apprentice: verbal (4 minutes), numerical (4 minutes), error checking (90 seconds), spatial (3 minutes), mechanical (3 minutes), and diagrammatic (6 minutes).

There is also Swift Global Aptitude, a 12-minute mobile-first combination test. Independent sources report that standalone single aptitude tests run roughly 16 to 24 minutes, while Swift sittings usually come in under 30 minutes.

Two features matter for candidates. First, scoring accounts for both speed and accuracy — this is not a raw count of correct answers, and rushing to answer questions incorrectly is penalised. Second, content is role-relevant. Finance roles use tests built on financial data, and engineering roles use technical contexts.

Most aptitude tests are desktop only and are not permitted on mobile phones. The exceptions are Swift Comprehension Verbal and Numerical, Swift Global, and Workplace English Proficiency tests. Desktops need a minimum resolution of 1024 by 768, and tablets are generally supported. If you want to understand where timed aptitude tests fit in the wider hiring picture, our skills assessments hub covers the category.

Wave is a different exercise. The flagship Wave Professional Styles questionnaire has a vendor-stated completion time of 40 minutes and measures your motives, talents, preferred culture, and competency potential. The Wave family also includes Focus Styles, Match 6.5, and Wave Strengths, each with different questions and timings but the same interface.

Wave uses rating and ranking item formats, including what Saville calls Deep Dives — Facet Ranges, Motive-Talent Splits, and Normative-Ipsative Splits. These formats exist partly to control for distortion, so answering strategically rather than honestly is difficult by design. Wave questionnaires are mobile-first, with a redesigned interface that offers dark and light mode and just-in-time instructions.

According to the independent prep site PracticeAptitudeTests, employers reported to use Saville tests in screening include Dyson, Jaguar Land Rover, PwC, and Capital One. Saville sits mainly in UK and EU graduate and professional recruitment.

Direct candidate commentary on Saville is thinner than for many vendors. On the RailUK Forums, one candidate who took Saville Work Strengths for a Northern conductor role reported finishing the questionnaire in about 20 minutes, feeling it "isn't something you can practice — just answer everything honestly." The result fed into a later group assessment and interview stage.

A vendor-quoted testimonial describes the refreshed Wave as fast and intuitive, completed on a phone. Take vendor-sourced quotes with the usual caution, but the mobile-first Wave design is consistent with that feedback.

One practical point on results. Reports go to the employer's accredited administrator, who distributes them at their discretion. Candidates do not automatically receive their own report — a trained feedback provider contacts you to discuss results.

• Use the free practice tests. Saville offers free timed online practice for Analysis, Comprehension, Technical, and Swift aptitude tests, plus preparation guides for each Wave questionnaire.
• Confirm which test you are taking so you practice the right format.
• Set up your device correctly. For most aptitude tests, use a desktop or laptop that meets the resolution requirement, since phones are not permitted for those.
• On Swift, balance speed and accuracy. Because both are scored, guessing quickly to save time can cost you.
• On Wave, answer honestly. The distortion controls make gaming the questionnaire counterproductive.
• Be careful not to exit an aptitude test mid-way. If you press Back or leave, the test locks and must be reset by the administrator, and it restarts from the beginning with no previous responses saved.

How long is the Saville Swift test?

Swift sittings usually run under 30 minutes. The exact length depends on the variant — Swift Executive combines three 6-minute sub-tests, while Swift Global Aptitude is a single 12-minute test.

Is the Saville aptitude test hard?

It is time-pressured rather than trick-based. Each sub-test is short and scored on both speed and accuracy, so the main challenge is working quickly without sacrificing correctness.

Can you retake a Saville test?

There is no self-service retake. If you exit an aptitude test it locks and must be reset by the employer's administrator, after which it restarts from the beginning with no saved responses.

Can you do Saville tests on your phone?

Wave questionnaires are mobile-first and designed for phones. Most aptitude tests are desktop only — the exceptions are Swift Comprehension Verbal and Numerical, Swift Global, and Workplace English Proficiency.

How long does the Wave personality questionnaire take?

Wave Professional Styles has a vendor-stated completion time of 40 minutes. Other Wave questionnaires vary in length but share the same interface.

Do you get your Saville results?

Not automatically. Reports go to the employer's accredited administrator, and a trained feedback provider contacts you to discuss your results rather than sending a report directly.

If you are earlier in your job search and want to understand the AI-driven side of hiring you are likely to meet alongside tests like these, our guide to the best AI recruiting software in 2026 breaks down the tools employers use to screen candidates.