It may seem like a tempting test-taking strategy, especially if you're asked to complete an unsupervised online test. However you should be aware that most online tests contain a number of measures to minimise and detect your efforts to cheat:
Randomisation:
Online tests will typically present a random selection of questions to each candidate. So trying to take the test more than once or finding the 'correct' answers from someone who has taken the test before are likely to be ineffective.
Verification of results
If an employer asks you to complete an online test remotely and unsupervised then they will check the results at a later stage of the recruitment process. This typically means some form of re-testing to make sure that your online test results are an accurate reflection of your numerical test ability. So it's no good getting help during your online test; your genuine numerical ability will be assessed later on.
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