Job Simulation vs Aptitude Tests

Most candidates preparing for a publicjobs.ie competition spend their time on numerical reasoning drills and verbal reasoning practice. That is not a bad use of time, but it is not the whole picture. The test that tends to separate people at Stage 1, and the one that generates the most “I have no idea how to prepare for this” posts on boards.ie, is a different animal entirely: the job simulation.

Understanding how it differs from a traditional aptitude test matters before you start prepping. If you treat them the same, you will prepare for the wrong thing.

This post covers the comparison. For a full guide to the job simulation format in the Irish context, see the public service job simulation test overview.

What is a traditional aptitude test?

A traditional aptitude test measures a specific cognitive ability in isolation. Numerical reasoning asks you to interpret data and calculate under time pressure. Verbal reasoning checks whether you can read a passage and draw accurate conclusions from it. Logical or abstract reasoning tests your ability to spot patterns.

These tests have a single correct answer per question. Speed and accuracy are what matter. You either get the number right or you do not.

They are useful screening tools - they tell an employer something real about your capacity to process information quickly and accurately. But they do not tell you anything about how a candidate would actually handle a working situation, which is exactly the gap the job simulation is designed to fill.

If you are working on the numerical side, numerical reasoning practice for Irish civil service competitions covers the Irish-specific format. The points below focus on the simulation component, where the preparation logic is fundamentally different.

What makes a job simulation different?

A job simulation puts you into a fictitious workplace scenario and asks you to respond as you would on the job. There is no single correct answer in the same way. Instead, responses are rated on how well they reflect the behaviours and values the employer is looking for.

For publicjobs.ie competitions, the job simulation component typically takes one of two forms.

The first is the situational judgement test, or SJT, where you are presented with a workplace scenario and asked to rank a set of possible responses from most to least appropriate. The key word there is rank. You are not picking one answer. You are ordering all of them, which is a meaningfully different cognitive task and one that most UK SJT practice material does not train you to do. UK prep packs usually present multiple-choice SJTs where you select a single best answer. Drilling that format builds habits that do not transfer cleanly to the Irish version.

The second is the e-tray, sometimes called the inbox exercise. You are given background materials for a fictitious organisation, then presented with a set of emails and tasks to respond to within a fixed time. According to publicjobs.ie materials, the e-tray can take up to two and a half hours and involves three stages: reading the context documents, selecting appropriate email responses, and writing a longer information response using the materials you have read. It is a sustained, document-heavy exercise that tests judgement, prioritisation, and written communication together rather than any one ability in isolation.

The situational judgement test is also addressed in depth on the situational judgement test practice guide, which covers the ranked-answer scoring model specifically.

Why did Irish public service recruitment move this way?

The shift away from standalone ability tests toward a job simulation format is part of a broader change in how the Civil Service assesses candidates. The Civil Service Capability Framework, introduced in February 2024 and now applied across all major competitions, replaced the older Competency Model. Where the old model focused on demonstrable past behaviours in specific competency areas, the new framework assesses a wider set of seven elements: behaviours, skills, strengths, knowledge, values, motivation, and interests.

The job simulation is designed to surface several of those elements at once. A verbal reasoning test tells you something about one dimension. An e-tray exercise, done under time pressure with documents you have not seen before, gives the assessors a richer picture.

For candidates preparing now, that shift means the approach that worked well for an older-style competition, or for a UK civil service application, may not map cleanly to what is being assessed today.

Does the aptitude test portion still count?

This is a question that causes genuine confusion, and the honest answer is that the detail varies by competition and you should always check the candidate information booklet for the specific campaign you are entering.

That said, based on what candidates have reported from recent Executive Officer competitions, the numerical reasoning and verbal reasoning tests typically function as pass/fail gates at Stage 1 rather than contributing to your overall Order of Merit ranking. The job simulation component is where the scores that determine your place on the panel are generated. A separate written question, roughly 500 words in 30 minutes, is also reported by candidates to be pass/fail only.

The implication is significant. If you are spending 90% of your preparation time on numerical reasoning drills and neglecting the job simulation, you may be putting your energy into the part that matters less for your final ranking.

Note that PAS does not publish pass marks officially. Thresholds reported by candidates on forums suggest a qualifying score in the region of 370 out of 800 for some competitions, but this is not confirmed and it varies. Do not treat any figure you find online as guaranteed fact. Check publicjobs.ie or the candidate booklet for the campaign you are entering.

What does good preparation look like for the job simulation?

For the aptitude tests, standard timed practice works. You are developing speed and accuracy with a fixed question type, and repetition helps.

The job simulation requires something different. You are practising judgement, not calculation. The scenarios are set in Civil Service and public sector contexts. Generic corporate SJT packs, the kind you find on UK prep sites, use different settings, reference different workplace cultures, and build responses around a different competency framework. That mismatch matters more than it sounds. The first time I sat an SJT I ranked on instinct and found afterwards that what felt like the obvious “good manager” response was not what the Irish Civil Service Capability Framework was looking for. The framework has a specific shape, and understanding it changes how you read a scenario.

Useful preparation for the job simulation includes:

Reading the Capability Framework itself, specifically the level descriptors for the grade you are applying to. The publicjobs.ie website publishes these and they are worth the time.
Practising ranked-answer SJTs in an Irish Civil Service context, not generic UK SJT sets.
For the e-tray, practising document-reading and structured written responses under a time limit. If you have never done an inbox exercise under pressure, the format itself will slow you down.

Frequently asked questions

What is the difference between a job simulation and a situational judgement test?

They are closely related. A situational judgement test, or SJT, is one format of job simulation. It presents a scenario and asks you to rank or choose between responses based on how appropriate they are. An e-tray or inbox exercise is another form of job simulation, typically longer and involving written output as well as selection tasks. In publicjobs.ie competitions the terms are often used interchangeably or in combination, but the formats are distinct in what they ask you to do.

Is the job simulation harder than the aptitude test?

“Harder” depends on your starting point. The aptitude tests are straightforward to practise for: the question types are defined, and speed improves with repetition. The job simulation is harder to prepare for without the right material, because generic practice packs are rarely built around Irish Civil Service scenarios or the 2024 Capability Framework. Candidates who have gone through the process often describe the job simulation as the component they felt least ready for, not because it is intellectually harder, but because there was less obvious, relevant practice available.

Do I get my job simulation score back after the test?

Based on what candidates have reported from recent competitions, PAS does issue individual scores and the qualifying score for each test after results are released. You will know your numerical score, though you typically will not know your Order of Merit position until you are contacted about the next stage. This can take months in a large volume competition.

Can the sample tests on publicjobs.ie replace proper practice?

The sample self-assessment tests on publicjobs.ie are worth doing, and they are free. They give you a sense of the format. The limitation candidates often mention is that the online version does not fully replicate the ranking interface used in the real SJT, so you cannot practise the actual ranked-answer mechanic. They are a starting point, not a substitute for structured practice.

Where to start tonight

If you are entering a publicjobs.ie competition and want to practise both the aptitude and job simulation components in an Irish-specific format, the free taster at PublicServicePathway gives you a sample of each. No card required.

The full practice bank, including ranked-answer SJTs, e-tray exercises, and numerical questions in euro denominations, is available at /pricing/ from €39/month. If your test is coming up soon, that is the most efficient use of a few evenings before Stage 1.

Job Simulation vs Traditional Aptitude Tests