How to practise the ADF aptitude test: a focused JOA routine

Start with understanding

Before timing yourself, work through examples slowly. For a numerical problem, identify the quantities and units. For a verbal problem, separate the stated facts from assumptions. For a visual pattern, describe exactly what changes. Being able to explain your method is more useful than remembering an answer letter.

Add a timed practice session

Service Prep tests use 51 questions and a 20-minute timer. Treat a practice attempt as a baseline: record the question types that consume the most time and whether you rush near the end. A practice score helps organise your next session; it does not predict an official eligibility decision.

Review before repeating

Group errors into calculation mistakes, misread instructions, unfamiliar patterns and time pressure. Choose one group to work on next. Also review answers you guessed correctly, because a correct guess may hide a gap in understanding.

Keep expectations realistic

Commercial preparation is optional. ADF Careers says the JOA tests natural abilities and provides official examples without requiring study. Use independent practice as an additional learning resource, not a promise of a higher score or a particular job.

A worked numerical reasoning example

Consider this original practice example: a store has 80 items and sends 25% of them to another location. How many remain? First identify the whole: 80 items. One quarter of 80 is 20, so 60 remain. An answer of 20 solves the amount sent, not the amount remaining. The calculation is simple, but the final instruction changes the answer.

When reviewing numerical reasoning practice, write down both the calculation and the question it answers. If your working is correct but your choice is wrong, you may need to work on reading the final sentence rather than repeating arithmetic drills. Try changing the percentage or asking for the original quantity to check whether you understand the relationship. This is a teaching example, not an official or recalled JOA question.

Turn a practice result into a useful next session

Create a review sheet with four columns: question type, your method, the point where the method failed, and what you will check next time. “Bad at maths” is too broad to act on. “I used the final quantity as the percentage base” gives you a specific error to investigate. Keep the same approach for words and diagrams: describe the decision, not just the answer letter.

For your next session, choose a small group of questions addressing that error. Explain your solution without looking at the answer, then check it. Only after that should you decide whether another full timed test would be useful. This routine is our suggested way to organise optional practice; it is not an ADF-prescribed study plan or a prediction of score improvement.

Build a realistic practice schedule

A useful planning sequence is an untimed session, a timed attempt and a separate review. Put the review in your calendar rather than treating it as something you will do if there is time. You can fit short vocabulary or calculation exercises around a busy week, while reserving an uninterrupted period for a full simulation.

Avoid comparing two scores without considering the conditions. Did you recognise questions from an earlier attempt? Did you pause, look something up or receive help? Record those differences. A higher score on familiar material can mean you remember that material, so use fresh questions when you want to assess your approach. The goal of your practice record is to make your learning clearer, not to manufacture a pass prediction.

Choose practice material for the task

Look for a clear explanation of the number of questions, timing, feedback and access period before buying. A short free quiz lets you try the interface; a full test lets you experience a longer timed session. They serve different purposes. Use official assessment instructions as your reference and optional commercial material as an additional set of learning activities. Neither a practice percentage nor a provider's product name determines the jobs available to you.