IFoA CS1 exam-day guide
IFoA CS1 · Prepare for the day ahead.
Your checklist
Government-issued photo ID
Bring the original ID document in the name used on your booking. Remote-proctored and test-centre sittings both require identity verification before the timer starts. Check the provider's accepted-ID list in advance; expired documents are commonly rejected.
Booking confirmation and candidate number
Have your confirmation email, candidate/registration number and the exam session details accessible. For remote sittings, keep the join link and any session password to hand rather than buried in an inbox.
Confirm the permitted calculator policy with the provider
CS1 is a mathematical statistics paper, so a calculator is effectively essential, but the exact model restrictions, memory-wipe requirements and whether a backup calculator is allowed vary by sitting. Confirm with the provider and check the approved-model list before the day.
Formula sheet and statistical tables policy
The paper relies on distribution tables and standard results. Confirm with the provider whether tables/formula booklets are supplied on screen, supplied in hard copy, or must be your own annotated copy, and what annotation is permitted.
R/Python environment expectations
Parts of CS1 test statistical computing concepts. Confirm with the provider whether any questions require writing or interpreting code, whether a software environment is provided, and whether pseudocode answers are acceptable. Do not assume an IDE will be available.
Working pens, pencils, eraser and rough paper
Even in a computer-based sitting you will need scratch paper for multi-step derivations. For test-centre sittings bring several pens. For remote sittings confirm with the provider what blank paper and stationery are allowed and whether rough work must be shown to the camera.
Test your remote setup if sitting online
Run the provider's system check on the same machine and network you will use: camera, microphone, screen share, browser version and bandwidth. Do this at least 24 hours ahead so a failed check leaves time to switch equipment.
Stable power and internet contingency
Charge laptop and phone, keep chargers connected, and know the provider's procedure for a disconnection mid-paper. Confirm with the provider how lost time is handled and whom to contact; do not rely on guesswork during the exam.
Quiet, cleared workspace and a visible clock
Remove notes, books and second screens from the desk and walls within camera view. A plain analogue clock or the on-screen timer helps pace questions without repeatedly checking a phone, which is usually prohibited.
Plan travel or login time with a buffer
Arrive at the test centre or log in well before the scheduled start; late arrival can forfeit the sitting. Build in margin for ID checks, room scans and queuing, and check local transport disruption the day before.
Water and a light snack for breaks
Confirm with the provider whether drinks and snacks are permitted at the desk or only during scheduled breaks, and whether breaks stop the clock. Keep packaging plain and label-free to avoid scrutiny.
Review the timing and marks structure
Know in advance how many questions, the mark allocation and whether all questions are compulsory. This determines your per-question time budget; confirm the exact structure from the current syllabus and specimen materials.
Plan the day
Switch from learning to consolidating. Re-read your own summary sheets for the core CS1 areas: distribution theory, generating functions and transforms, sampling distributions, point estimation and properties of estimators, interval estimation, hypothesis testing and likelihood-based inference. Rehearse the standard derivations you can reproduce from memory rather than re-reading worked solutions passively.
Do one full timed paper under exam conditions, including rough work on paper and using only the materials you will actually have. Mark it honestly against the solutions, then list the two or three topics where marks were lost for reasons other than carelessness. Those become your only remaining study targets.
Complete the administrative checks: verify the exam time in your own time zone (a common source of error for remote sittings), confirm venue or platform details, run the provider's system test, and confirm calculator, table and rough-paper rules with the provider if anything is unclear.
Do a second, shorter timed session focused on the weak topics identified above, plus a pass over the formula results you keep forgetting. Practise recognising which distribution or test a worded question is pointing to, since CS1 questions are often framed as scenarios rather than named methods.
Stop learning new material. Review summary sheets only, and rehearse the layout of the statistical tables so you can locate a critical value quickly under time pressure. Pack ID, confirmation, stationery and calculator, and lay out clothing and travel items.
Prepare the workspace: clear the desk, test camera framing, charge all devices, and save the provider's support contact and the join link somewhere obvious. Check the exam start time once more and set two alarms.
Protect your sleep. A late cramming session costs more in careless algebra and misread questions than it gains in recall. Aim to be rested rather than to have covered one more chapter.
Eat properly, avoid heavy caffeine if you are already anxious, and do a 20-minute light review of formula sheets only. Do not attempt a new past paper; it risks denting confidence and tiring you before the paper.
Log in or arrive early with your ID and confirmation ready. Complete ID verification and any room scan calmly, silence notifications, close other applications, and tell anyone at home that you are sitting an invigilated exam.
Read the instructions and note the number of questions and marks. Skim the whole paper briefly to identify the questions you can do fastest, then start with those to bank marks and settle nerves.
Set a per-question time budget from the marks and stick to it. If a derivation stalls, write down the method and known results, leave a gap, and move on; partial method marks are usually available and a blank page earns nothing.
Show working for every step: state the distributional assumption, the test statistic, the null and alternative, and the conclusion in context. In hypothesis testing, quote the p-value or critical value and give a plain-language interpretation, since these are routinely worth marks.
Check that every question has an attempted answer, that numerical answers have sensible magnitudes, and that conclusions are stated where asked. Confirm your answers are saved or submitted according to the platform's procedure before time expires.
Rules to check
Bring the original photo ID matching your booking name; without acceptable ID you may be refused entry or disconnected, and no substitute document should be assumed to work. Confirm with the provider which documents are accepted for your sitting type.
Do not communicate with anyone other than the invigilator or proctor during the exam, and do not use unauthorised materials, notes, phones, smart watches or secondary devices. Remote sittings are typically recorded and reviewed after the event, so a breach noticed later can still lead to invalidation.
Stay within the permitted equipment list. Using a calculator model or software not on the approved list, or a calculator with retained memory where a wipe is required, is a conduct issue rather than a minor slip. Confirm with the provider which models and functions are allowed.
Breaks are governed by the provider's rules, not your own judgement. Confirm with the provider whether unscheduled breaks are permitted, whether the clock stops, and whether you must remain visible to the camera; leaving the view unannounced can void the sitting.
Marks are awarded for method as well as final answers, so an unreasoned number can score poorly even if correct. Write the reasoning, define notation, and state assumptions explicitly.
Answer the question as set. Giving several alternative methods without indicating which you intend as your answer can confuse marking; if you change approach, strike through or clearly label the abandoned work where the platform allows it.
If a technical failure occurs, follow the provider's incident procedure immediately and record what happened and when. Confirm with the provider in advance how to report a disruption and what evidence they require, rather than negotiating afterwards.
Results, grade boundaries and any resit or appeal arrangements are set by the provider and published on their timetable. Do not rely on second-hand claims about pass marks; check the official documentation for the sitting you take.