EDF's apprentice strengths test has no right answers, and only some roles add a short cognitive test

EDF's early careers guidance says every candidate takes a Situational Strengths Test and that some roles add a short cognitive assessment. Our reasoning test is timed numerical and verbal work, which is the closest rehearsal we have for that cognitive add-on if your role includes it.

The main EDF test is a behavioural strengths questionnaire that prep guides describe as untimed, and no reasoning practice can rehearse it. EDF does not say what the cognitive test contains, how long it is or which roles use it, and it publishes no pass mark.

EDF describes its Situational Strengths Test as a behavioural assessment that shows whether you would enjoy working there and have the strengths to succeed. You see realistic work situations and choose or rate responses. There is no syllabus, and nothing to memorise about nuclear power or energy markets.

Prep guides add that the test is not timed but has to be completed in one sitting. That changes how to approach it: you do not need to rush, but you cannot pause halfway and come back tomorrow. Set aside a quiet half hour or more with a charged laptop, read each scenario properly, and choose the response you would genuinely give. Our situational judgement guide explains why candid answers usually beat guessing what the employer wants.

EDF runs the UK's operating nuclear power stations and is building Hinkley Point C, where following procedure and speaking up about risk are central to the job. Scenario tests in safety-critical industries tend to favour candidates who stop and check, ask for help when unsure, and report mistakes early, over those who improvise to finish quickly.

This is not a trick to play. If you naturally take shortcuts, a career in a nuclear plant may not suit you anyway. But if you are careful by nature, let that show rather than trying to look decisive.

EDF says some roles also need a short cognitive assessment. It does not say which roles or what the test covers. Engineering and technical apprenticeships are the likeliest candidates, so if you are applying for one of those, a little practice with numbers and short reading passages under time is sensible.

Our numerical reasoning test gives you timed number and reading questions in one sitting. Treat any result as a guide to what to brush up, not a prediction of EDF's outcome.

EDF's guidance is unusually specific about the apprentice assessment centre: a live video interview, a group exercise, two shorter micro exercises carried out one to one with an assessor, and a strengths-based interview. EDF adds that assessment days involve several exercises so you can show different skills.

Strengths-based interviews ask what you enjoy and what comes naturally, as well as what you have done. Prepare honest answers to questions like what kind of task makes time fly for you, and what you find draining. For the micro exercises, listen to the brief carefully and think aloud so the assessor can follow your reasoning.

EDF says all candidates receive a feedback report after the strengths test and that it aims to update you on your application within seven days. Read the report even if you progress: it tells you which strengths came through, which is useful for the strengths-based interview later.

These come from anonymous reviews, university careers pages and prep guides. They often disagree, and EDF has not confirmed them. Read them as leads, not rules.

• Prep guides say the EDF Situational Strengths Test is untimed but must be completed in one sitting.
• A third-party guide describes the EDF online test as assessing basic numeracy and literacy, which differs from EDF's own description.
• Candidates report a 30-minute telephone interview with HR on motivation and company knowledge in some processes.
• Prep guides note that game-based tests and long assessment centres described online mostly concern the EDF graduate scheme, not apprenticeships.