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The Public Health Assessment Centre is the computer-based stage used in UK Public Health specialty training (ST1) recruitment. Official NHS England Medical Hub materials describe a single Pearson VUE sitting of about 190 minutes with three independently timed papers: Watson Glaser critical thinking, RANRA numerical reasoning, and a Public Health Situational Judgement Test (SJT).

This guide covers ST1 selection through the Public Health National Recruitment Office (PHNRO) and Oriel. It is not the Multi-Specialty Recruitment Assessment (MSRA), the NHS Scientist Training Programme, or the NHS Graduate Management Training Scheme. Medical, non-medical and multidisciplinary eligibility routes differ; verify the person specification for the round you are applying to. Exact dates and ranking thresholds are campaign-specific.

The 34 exercises below are original educational drills. They are not official PHNRO, Pearson, Watson-Glaser, RANRA, NHS England or JobTestPrep items. Official PHNRO text states that Public Health SJT question writers do not take part in or endorse preparation courses or books.

Key Takeaways

  • Public Health ST1 selection is distinct from NHS STP and the NHS Graduate Management Training Scheme.
  • The Assessment Centre is not the MSRA. Completing MSRA does not count for Public Health recruitment.
  • Applicants must meet minimum standards on Watson Glaser, RANRA and the Public Health SJT before ranking toward selection centre invites.
  • PHNRO does not publish a simple public cut-off table for every intake. Treat third-party pass scores as unverified.
  • Commercial preparation is not endorsed by Public Health SJT writers and cannot guarantee progression.

Quick facts

Public Health ST1 Assessment Centre snapshot (confirm against the live Medical Hub round)
Item Detail
Programme Public Health specialty training (ST1)
Application portal Oriel (national recruitment)
Stage Public Health Assessment Centre (Pearson VUE)
Total appointment (standard) About 190 minutes including tutorial, break and survey
Papers Watson Glaser (30 min); RANRA (40 min); SJT (100 min)
Progression Meet minimum standards, then ranking toward virtual selection centre
Integrity PHNRO states SJT writers do not endorse commercial prep courses

How UK Public Health ST1 recruitment usually works

National recruitment for Public Health specialty training is administered through PHNRO and delivered via Oriel.

Official Medical Hub recruitment information for the 2026 round (posts commencing August 2026) stated that applications opened at 10:00 on 23 October 2025 through Oriel only. Paper applications were not accepted. Selection into Public Health specialty training in 2026 was run by NHS England - Midlands for England, Scotland, Northern Ireland and Wales. Future rounds may change dates and administration details; check the live Medical Hub pages for the intake you are targeting.

Typical publicly confirmed stages:

  1. Eligibility and long listing - Applications are checked against programme requirements. PHNRO states it cannot advise on individual eligibility; candidates must read the person specification and FAQs, including medical and non-medical or multidisciplinary routes where published.
  2. Assessment centre - Eligible applicants are invited to a Pearson VUE computer-based assessment covering critical thinking, numerical reasoning and situational judgement.
  3. Ranking - Applicants who meet minimum standards at assessment are ranked by assessment scores. Those below minimum standard are notified that their application will not proceed.
  4. Virtual selection centre - Top-ranked applicants are invited to a digital selection centre. Official pages describe six questions of six minutes each across three stations, with two assessors per station.

For the 2026 round, assessment tests were scheduled for Tuesday 6 January and Wednesday 7 January 2026 at Pearson VUE centres. Remote testing is managed only in exceptional circumstances on a case-by-case basis. Confirm dates for any later round on official pages.

The Faculty of Public Health (FPH) oversees training quality and professional standards. FPH is not the ST1 recruitment administrator.

What is in the Public Health Assessment Centre

Official structure pages confirm the assessment is delivered as one appointment with independently timed papers and an on-screen countdown for each section.

Public Health Assessment Centre timing sections (standard accommodations)
Section Normal time Notes
Tutorial 5 min Familiarisation before timed papers
Watson Glaser 30 min Critical thinking
RANRA 40 min Numerical reasoning; follows Watson Glaser immediately
Scheduled break 5 min (optional) Excess break time is deducted from SJT time
Public Health SJT 100 min Scenario-based professional judgement
Survey 10 min Post-assessment feedback

Pearson VUE offers a generic demo on its website to familiarise candidates with controls and screen layout. Official guidance states that calculators, other stationery or paper are not permitted. A wipeable board is provided at the test centre.

PHNRO revision materials emphasise that sharing information about actual assessment content is unacceptable and viewed as unprofessional. The centre uses many equated forms, so question knowledge from one sitting does not reliably help others.

Paper themes to practise (confirm formats on official sample pages)

Public Health ST1 Assessment Centre papers: skills to practise and assumptions to avoid
Paper Skills to build What not to assume
Watson Glaser Inference, assumptions, deduction, interpretation, argument evaluation Exact item count, scoring weights or pass thresholds
RANRA Proportions, ratios, rates, charts, multi-step numerical logic Calculator access; that educational maths equals live item difficulty
Public Health SJT Ranking, multiple-choice combinations, trainee professionalism That study keys match live scored responses; commercial endorsement

Official sample questions illustrate SJT formats including full ranking exercises and “choose three most appropriate actions” items. Use those samples for format familiarisation before third-party drills.

Selection centre after the assessment centre

Applicants who meet minimum standards at the written tests are ranked. Top-ranked candidates are invited to a virtual selection centre. Official pages describe this as different from a conventional unstructured interview: each candidate is assessed by multiple trained assessors against essential criteria from the person specification.

Publicly confirmed selection centre features include:

  • Six scored questions, each lasting six minutes, across three interview stations (two questions per station).
  • Two assessors per station; assessor names appear on screen.
  • Assessors start questions immediately without introductions, to maximise scoring time within the appointment.
  • Two questions include preparation time; related materials are sent the day before the booked interview.
  • The appointment may last up to about 60 minutes including ID checks and briefing.

Official pages state there is a minimum total selection centre score and that both assessment centre and selection centre requirements must be met before appointment consideration. PHNRO does not publish a simple public cut-off table for either stage; treat any third-party pass-score claims as unverified unless confirmed in your campaign documents.

How to prepare

  1. Read the current Medical Hub Public Health Assessment Centre pages, recruitment FAQs and official sample materials first.
  2. Register and apply through Oriel when the live round opens; do not rely on outdated forum timelines.
  3. Practise critical-thinking item types carefully: inference, assumptions, deduction, interpretation and argument strength.
  4. Rebuild numerical speed without relying on a calculator; official materials state calculators are not permitted and a wipeable board is provided.
  5. For SJT items, judge against professional public-health values using only the information given. Official samples use ranking and “pick three actions” formats.
  6. Prepare concise selection-centre examples mapped to person-specification essential criteria, not generic interview stories.
  7. Treat commercial PrepPacks as independent supplemental drills after official familiarisation. PHNRO explicitly states SJT writers do not endorse preparation courses or books.

Optional third-party practice

Some links on this page are affiliate links. We may earn a commission if you purchase through them, at no additional cost to you. See our Affiliate Disclosure.

If you want additional critical-thinking, numerical and SJT drills after official samples, an independent UK Public Health specialist practice pack can help candidates practise comparable formats.

JobTestPrep UK is an independent third-party preparation provider. It is not PHNRO, Pearson VUE, Oriel, NHS England or an official recruitment administrator. Check the current UK price and access period before purchase. Preparation cannot guarantee a pass, selection-centre invitation or training offer. Official sample materials and Medical Hub guidance control the live process.

Practice questions

These items are original educational drills. They are not Pearson, Watson-Glaser Critical Thinking Appraisal, PHNRO or JobTestPrep items.

Critical thinking and critical appraisal (Watson Glaser-style educational)

1. Premises: All district nurses completed mandatory training before March. Sam is a district nurse. Conclusion: Sam completed mandatory training before March.

A. Definitely true B. Probably true C. Insufficient data D. Probably false E. Definitely false

Correct answer: A Explanation: If the universal premise is accepted, Sam must have completed the training before March.

2. Passage: “Local authorities should ban takeaway outlets near schools to reduce childhood obesity.” Proposed assumption: proximity of takeaway outlets near schools is a meaningful contributor to childhood obesity in that area.

A. Assumption made B. Assumption not made

Correct answer: A Explanation: The recommendation rests on the idea that nearby outlets contribute to the problem.

3. Fact set: If a vaccine dose is administered correctly according to the protocol, adverse events of type X are rare. Mira received a correctly administered dose. Conclusion: Mira will not experience adverse event type X.

A. Conclusion follows B. Conclusion does not follow

Correct answer: B Explanation: “Rare” does not mean impossible for an individual.

4. Which statement is the strongest argument for funding community stop-smoking services?

A. “Smoking is unfashionable among influencers.” B. “Stop-smoking services are associated with measurable reductions in smoking prevalence when properly evaluated.” C. “Some staff enjoy group workshops.” D. “Printed leaflets look colourful.”

Correct answer: B Explanation: Strong arguments cite relevant evaluated evidence linked to the policy aim.

5. Interpreting: Cases of foodborne illness rose after a festival weekend. Which interpretation is best supported if the only extra data show many stalls lacked temperature logs?

A. All illnesses were caused by one brand of ice cream. B. Temperature-control failures are a plausible contributing factor needing investigation. C. The illness spike is unrelated to food. D. Festivals should always be cancelled permanently.

Correct answer: B Explanation: Missing temperature logs support a hygiene-control hypothesis without proving a single source.

6. Inference: A paper reports OR = 2.1 (95% CI 1.4-3.1) for disease D among people exposed to hazard H versus unexposed. Best inference under usual assumptions?

A. Exposure to H is associated with higher odds of D in the study. B. Hazard H causes D in every exposed person. C. The confidence interval proves no association. D. Odds ratios cannot be interpreted.

Correct answer: A Explanation: The point estimate exceeds 1 and the interval does not cross 1, supporting association in the study sample, not universal causation.

7. Deduction: Either the laboratory report is delayed or the clinician has already been notified. The laboratory report is not delayed. Therefore:

A. The clinician has already been notified. B. The laboratory made an error. C. The clinician refused notification. D. Nothing follows.

Correct answer: A Explanation: With a true “either/or” premise and one branch ruled out, the other branch must hold.

8. Weak vs strong: “We should expand active-travel schemes because cycling looks fun on posters.” This argument is weak primarily because:

A. It uses humour. B. It does not connect the claim to evaluated public-health outcomes or evidence. C. Posters are illegal. D. Travel schemes never work.

Correct answer: B Explanation: Visual appeal is not evidence of health or behaviour impact.

9. Passage: “After the smoke-free policy, hospital admissions for asthma fell in the district.” Proposed conclusion: the smoke-free policy caused the fall.

A. Conclusion follows from the passage alone B. Conclusion does not follow from the passage alone

Correct answer: B Explanation: Temporal association alone does not establish causation without a controlled comparison or stronger design detail.

10. Which assumption underlies the claim: “Routine bowel screening should start at age 50 because earlier start age maximises population benefit”?

A. Starting at 50 detects enough preventable cases cost-effectively compared with other start ages. B. Every person prefers screening. C. Screening has no false positives. D. Age is unrelated to disease risk.

Correct answer: A Explanation: The policy claim assumes a favourable benefit-to-harm and value balance at that threshold.

Numerical reasoning and public-health numeracy (RANRA-style educational)

Not official RANRA or Pearson items. Calculators are restricted in the live Public Health Assessment Centre; practise mental and written methods.

11. A clinic records weekly attendances: 42, 38, 45, 51, 40. What is the mean?

A. 42 B. 43.2 C. 44 D. 45

Correct answer: B Explanation: Sum = 216; 216 / 5 = 43.2.

12. Prevalence of condition C is 8% in a town of 25,000 adults. Approximately how many adults have C?

A. 200 B. 800 C. 2,000 D. 8,000

Correct answer: C Explanation: 0.08 x 25,000 = 2,000.

13. A programme reduces A&E attendances from 1,200 to 960 per quarter. What is the percentage reduction?

A. 15% B. 20% C. 25% D. 40%

Correct answer: B Explanation: Fall of 240; 240/1200 = 0.2 = 20%.

14. Ratio of cases in Area A to Area B is 3:5. Combined cases = 160. How many in Area A?

A. 48 B. 60 C. 80 D. 100

Correct answer: B Explanation: 3+5=8 parts; each part 20; A = 60.

15. A vaccine stock of 480 doses will last 16 days at constant use. After 4 days of that rate, usage rises by 25%. How many full days can the remaining stock last at the new rate (to one decimal place)?

A. 9.0 B. 9.6 C. 12.0 D. 15.0

Correct answer: B Explanation: Initial daily use = 480/16 = 30. After 4 days, 360 remain. New rate = 37.5/day. 360/37.5 = 9.6 days.

16. Chart reading: Quarter 1 notifications = 50; Q2 = 65; Q3 = 60; Q4 = 85. What share of the annual total occurred in Q4?

A. 25% B. about 32.7% C. 40% D. 50%

Correct answer: B Explanation: Total 260; 85/260 ≈ 0.327.

17. If 3 sanitarians inspect 90 premises in 5 days at equal pace, how many premises can 5 sanitarians inspect in 4 days at the same pace?

A. 96 B. 100 C. 120 D. 150

Correct answer: C Explanation: Rate = 90/(3x5) = 6 premises per sanitarian-day. 5x4x6 = 120.

18. A screening programme’s positive predictive value is 40%. Of 50 positive screens, how many are expected true positives?

A. 10 B. 20 C. 30 D. 40

Correct answer: B Explanation: 40% of 50 = 20 expected true positives.

19. In a cohort, 40 of 500 exposed and 25 of 500 unexposed develop illness. What is the absolute risk increase (ARI) in percentage points?

A. 1% B. 3% C. 5% D. 15%

Correct answer: B Explanation: Exposed risk 8%; unexposed 5%; ARI = 3 percentage points.

20. Vaccine coverage rises from 72% to 81% in one year. What is the relative increase in coverage (to the nearest whole percent)?

A. 9% B. 11% C. 13% D. 25%

Correct answer: C Explanation: Absolute rise 9 points; relative increase = 9/72 ≈ 12.5%, nearest whole percent 13%.

Situational judgement (public health trainee contexts)

Answers mark a Most defensible response for study only. Not official Public Health SJT keys. Official PHNRO materials state SJT writers do not endorse commercial prep courses.

21. You notice a draft press note exaggerates local outbreak numbers. The communications lead wants to publish within an hour.

A. Stay quiet to keep relationships smooth. B. Raise the discrepancy immediately with evidence and insist figures match verified surveillance data before release. C. Leak an anonymous tip to a journalist first. D. Rewrite the note with even larger numbers for impact.

Most defensible response: B Explanation: Accurate public communication protects trust and safety; escalate with evidence before release.

22. A colleague shares identifiable patient information in a busy open-plan office loudspeaker call.

A. Join in and add more details. B. Ignore it. C. Pause them calmly, move to a private space, and follow information-governance procedures. D. Post about it on social media as a warning.

Most defensible response: C Explanation: Stop the breach promptly and follow confidentiality procedures.

23. Your analysis suggests an inequality widened after a service change, but senior stakeholders prefer a positive headline.

A. Alter the chart to hide the widening gap. B. Present the limitation and inequality finding clearly with methods, then discuss implications. C. Delete the adverse result permanently. D. Refuse to speak at all.

Most defensible response: B Explanation: Professional integrity requires transparent reporting of findings, including unwelcome results.

24. You lack expertise for a technical outbreak genetics question in a multi-agency call.

A. Invent a confident-sounding answer. B. Say you will check with the appropriate specialist and return with verified information. C. Blame another agency publicly. D. End the call abruptly.

Most defensible response: B Explanation: Honest scope-of-practice boundaries protect decision quality in health protection settings.

25. A fellow trainee admits they sent a patient letter to the wrong email address and plans to say nothing.

A. Reassure them it probably does not matter. B. Explain the seriousness, signpost information-governance policy, and encourage proper reporting. C. Delete the sent email and move on. D. Share the story widely for office gossip.

Most defensible response: B Explanation: Confidentiality breaches require corrective action, not concealment.

26. A project lead asks you to change analysed air-pollution data to match an expected political outcome. You are unsure the data can support that outcome.

A. Change the analysis immediately to please the lead. B. Review the analysis for errors, clarify project aims with the lead, and seek senior advice if pressure continues. C. Refuse all further communication with the lead. D. Publish the preferred outcome without documenting methods.

Most defensible response: B Explanation: Check accuracy first, understand intent, and escalate appropriately rather than falsifying results.

27. On a new health protection placement you feel excluded while colleagues swap tasks among themselves.

A. Complain to external social media. B. Ask the team consultant for constructive advice on engaging with the team. C. Tell teammates they are deliberately excluding you in front of others. D. Continue working in isolation without raising the issue.

Most defensible response: B Explanation: Official sample rationales favour polite escalation to the appropriate lead early in a new placement.

28. Childcare difficulties make on-call rota duties hard to fulfil. You are the only team member with young caring responsibilities.

A. Call in sick on rota days without discussion. B. Discuss personal constraints with your supervisor and explore workable arrangements to meet duties. C. Inform your supervisor you will no longer do on-call work. D. Swap shifts informally without telling your supervisor.

Most defensible response: B Explanation: Open, honest discussion with the supervisor balances trainee responsibilities and realistic support options.

Process literacy (publicly confirmed recruitment stages)

These items test understanding of stages described on official Medical Hub and Oriel pages. They are educational orientation only, not scored live exam items.

29. For the national Public Health ST1 process, where must applications be submitted?

A. By post to the local deanery office B. Through the Oriel electronic portal C. By email to the Faculty of Public Health membership team D. Through the MSRA booking system

Correct answer: B Explanation: Official recruitment information states applications are accepted only through Oriel.

30. A candidate completed the MSRA for another specialty. How does official guidance treat that for Public Health ST1?

A. MSRA scores are averaged into Public Health ranking B. MSRA completion substitutes for Watson Glaser C. MSRA completion does not count towards Public Health recruitment D. MSRA waives the SJT paper

Correct answer: C Explanation: Structure pages explicitly state the Public Health Assessment Centre is not the MSRA and MSRA completion does not count.

31. What is the total standard appointment length for the Public Health Assessment Centre, including tutorial, break and survey?

A. 150 minutes B. 175 minutes C. 190 minutes D. 240 minutes

Correct answer: C Explanation: Official timing tables list 190 minutes total for standard accommodations.

32. According to official 2026-round recruitment pages, on which dates are assessment tests scheduled?

A. Any weekday across January B. Tuesday 6 January and Wednesday 7 January 2026 C. Only the first Monday of February D. Continuous rolling slots with no fixed national dates

Correct answer: B Explanation: Assessment and selection centre pages publish those fixed national dates for the 2026 round.

33. After the assessment centre, what happens to applicants who meet the published minimum standard?

A. Automatic job offer without further selection B. They are ranked by assessment scores for possible selection centre invitation C. They skip straight to workplace induction D. They retake only the SJT within 24 hours

Correct answer: B Explanation: Official pages describe minimum-standard attainment followed by ranking toward selection centre invites.

34. Which description best matches the official virtual selection centre format?

A. One unstructured 10-minute phone chat B. Six six-minute scored questions across three stations with trained assessors C. A written essay paper only D. A single group role play with no individual scoring

Correct answer: B Explanation: Assessment and selection centre pages describe six questions, six minutes each, across three interview stations.

Official resources

FAQ

How long is the Public Health Assessment Centre?

Official structure pages describe a 190-minute appointment for standard timing, covering tutorial, Watson Glaser, RANRA, an optional break, SJT and a short survey. Confirm any adjusted timing in your invitation.

Is this the same as the MSRA?

No. Official guidance states the Public Health Assessment Centre is not the MSRA and MSRA completion does not count for Public Health recruitment.

Is Public Health ST1 the same as NHS STP?

No. STP recruits clinical scientists through NSHCS. Public Health ST1 is a separate specialty-training pathway with its own Assessment Centre and selection centre.

Are calculators allowed?

Official structure guidance states that calculators, other stationery or paper are not permitted, and a wipeable board is provided at the test centre.

Where do I apply for Public Health ST1?

Official recruitment pages state applications are submitted through Oriel when the national round opens. Paper applications are not accepted.

What happens after the assessment centre?

Applicants must meet minimum standards on all three papers. Those who do are ranked by assessment scores. Top-ranked candidates may be invited to the virtual selection centre described on official pages.

Do third-party courses have official endorsement?

No. PHNRO states that none of the Public Health Situational Judgement question writers take part in or endorse any preparation courses or books.

Can I rely on commercial pass-score claims?

Treat third-party cut-off figures as unverified unless your live campaign documents confirm them. Official pages describe minimum standards and ranking but do not publish simple public numeric thresholds for every intake.

Next steps

Return to the UK Assessment Tests hub for more British employer, public-service and graduate-scheme guides.