Saville Assessment: Complete Guide to Swift, Wave & Aptitude Tests

Saville Assessment is an independent psychometric test publisher founded in 2004 by Peter Saville — one of the co-founders of the original SHL (Saville & Holdsworth Ltd). After leaving SHL, Peter Saville built a new suite of assessments with a focus on adaptive testing technology and evidence-based personality measurement. Saville assessments are now used by hundreds of organisations across the UK, Europe, and Australia, particularly in the public sector, financial services, and graduate recruitment.

The product portfolio has two main pillars: Swift (cognitive aptitude tests) and Wave (personality and motivation questionnaires). Saville also produces situational judgement tests (SJTs) and 360-degree feedback tools. Unlike SHL's TalentCentral platform, Saville assessments are typically administered through the Saville Assessment portal or through a licensed employer platform.

Swift tests are Saville's adaptive aptitude assessment suite. "Adaptive" means the test engine adjusts question difficulty based on your previous answers — if you answer correctly, the next question is harder; if you answer incorrectly, the next question is easier. This allows shorter tests to measure ability more precisely than fixed-difficulty tests of the same length.

Swift Verbal Analysis tests your ability to read passages of text and accurately evaluate statements about them. The format is similar to SHL's Verbal Reasoning Test — passages followed by True / False / Cannot Say questions — but the adaptive engine means harder passages appear as you score well. At the executive level, passages may be dense professional or technical texts requiring careful inference rather than simple factual recall.

What Distinguishes Higher-Difficulty Verbal Questions

• Implied meaning: The question requires inferring something not directly stated, only implied by the passage's logic. The passage says X and Y; does it follow that Z? Precision matters — slightly over- or under-reaching an inference should be marked Cannot Say.
• Negation traps: Questions that include "not" or "never" require careful reading. "It is not true that the company never…" contains a double negation — parse it slowly.
• Partial truths: The statement is partly supported but not fully — e.g. the passage supports it for one context but not another. The correct answer is Cannot Say.
• Distractor language: The question uses synonyms or paraphrases of passage text. Check whether the paraphrase accurately reflects the passage's meaning or subtly distorts it.

Strategy: read each statement before reading the passage. Know what you're looking for before you start reading. For ambiguous answers, default to Cannot Say unless the passage clearly confirms or denies the statement. See our full verbal reasoning guide for worked examples.

Swift Numerical Analysis presents data in tables, graphs, and charts, then asks multiple-choice questions requiring calculation and interpretation. The format is essentially identical to SHL's Numerical Reasoning Test in structure, but the adaptive engine delivers harder questions (more complex multi-step calculations, misleading data layouts, percentage-of-percentage calculations) as your score improves.

Key Calculation Types

Swift Diagrammatic Reasoning tests abstract pattern recognition — the ability to identify the underlying rules governing a sequence of shapes or symbols and apply those rules to determine what comes next. This is equivalent to SHL's Inductive Reasoning Test and measures fluid intelligence (reasoning ability independent of domain knowledge).

Questions typically show a sequence of abstract figures with changes in shape, size, number, rotation, shading, or position. You must identify the rule(s) and select which option correctly continues or completes the sequence.

Common Pattern Rules to Look For

• Number: Count the shapes in each frame — is the number increasing by 1, doubling, following a pattern?
• Size: Are shapes growing or shrinking? Is size alternating?
• Rotation: Is a shape rotating clockwise by a fixed amount per frame?
• Shading/fill: Does shading alternate between frames? Does it progress (empty → half → full)?
• Position: Is an element moving across the grid in a consistent direction?
• Addition/subtraction of elements: Is a new element added each frame, or one removed?

Use the NSCRP scan: Number, Size, Colour/shading, Rotation, Position. Check each attribute systematically before committing to an answer. Multiple rules usually operate simultaneously — find them all before selecting your answer.

Wave is Saville's flagship personality questionnaire and one of the most sophisticated personality measurement tools available to employers. It is based on the Big Five personality model but goes significantly further — measuring 12 clusters and 36 facets across four domains: Thought, Influence, Adaptability, and Delivery.

Wave comes in two main versions:

• Wave Styles (also called Wave Focus or Short Wave): ~72 items, approximately 15–20 minutes. Used for initial screening. Measures all 12 clusters.
• Wave Professional Styles: ~216 items, approximately 40 minutes. The full questionnaire. Used for development centres, leadership assessment, and in-depth hiring. Provides the most granular profile, including consistency checks between how candidates rate themselves on ipsative (forced-choice) and normative (rate on a scale) items.

Saville assessments are used across a wide range of sectors in the UK, Europe, and Australia. The public sector is a particularly strong area — many NHS Trusts, UK government departments, and local authorities use Saville for graduate and professional-level recruitment. Financial services, insurance, and energy companies also use Saville in significant numbers.

If your invitation email or employer portal mentions "Saville", "Swift", or "Wave", you are being assessed on Saville's platform. If the platform is unfamiliar or the branding is obscured, look for the test format characteristics: adaptive difficulty adjustment and the distinctive ipsative-normative pairing in personality questions are both strong indicators of Saville products.

If you're preparing for aptitude tests from multiple employers, it helps to understand how Saville compares to the other major providers. See our full SHL vs Korn Ferry vs cut-e comparison for a broader view.

For most candidates, preparation for one provider's aptitude tests transfers well to the others — the underlying skills (reading comprehension, data interpretation, abstract reasoning) are the same. The main differences are format, timing, and adaptive behaviour. Our free practice tests are calibrated to SHL format but build the same underlying skills needed for Saville Swift tests. Supplement with Saville-specific practice if available.