Sit a numerical reasoning test cold, with no practice, and you will almost certainly underperform - not because you are bad at maths, but because the format catches you out. Aptitude and psychometric tests are now a routine filter in UK graduate schemes and many professional roles, and the candidates who sail through are rarely the cleverest. They are the ones who have done forty practice questions and know exactly what a SHL-style or Watson Glaser test throws at them before they open the real one.
The three you will actually meet
Most aptitude testing falls into three buckets. Numerical reasoning gives you a chart or table and asks you to work out percentages, ratios and trends against the clock - you may use a calculator, and the difficulty is the time pressure, not the arithmetic. Verbal reasoning hands you a passage and asks whether statements are true, false, or impossible to say from the text alone, and the discipline there is brutal: answer only from what the passage states, never from what you happen to know.
Situational judgement tests are different again. They sketch a workplace scenario - a difficult colleague, a missed deadline, a conflict between two instructions - and ask what you would do. There is no maths and no trick; the test is measuring whether your instincts match the employer's values, so read their stated competencies beforehand and answer as the professional they describe, not as your most cynical Friday-afternoon self.
Practice, and the honesty question
Practice is not cheating - it is the whole point. Free and paid practice tests are easy to find, and a few hours with them familiarises you with the timing, the answer format, and the specific style of provider the employer uses. Commit to at least a couple of full practice papers before the real thing; the improvement from sheer familiarity is large and immediate.
Personality questionnaires are the exception to all of this, and people get them badly wrong. Should you game your answers to look like the ideal candidate? No - and here is why. These questionnaires have consistency checks that flag contradictory answers, so the person who tries to engineer a perfect profile often produces an incoherent one. Worse, if you fake your way into a role that suits a personality you do not have, you have won a job you will quietly hate.
- Find out which test provider the employer uses, then practise that specific style.
- For verbal tests, "cannot say" is a real and frequently correct answer - do not force a true or false.
- Answer personality questionnaires honestly and reasonably quickly; overthinking each item is how you trip the consistency flags.
Walk in having seen the format already, and the test stops being an ambush. The maths was never the hard part - the surprise was.