In employment testing, the term “test battery” refers to a group of tests you give job candidates who apply for a particular position at your company. 

Your test battery will vary depending on the job requirements, or needs, at your organization.
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For instance, if you’re hiring an accountant, you may want to give candidates tests in math and basic accounting, and you might also want to give them a personality profile test to see if they’re detail-oriented, organized, etc. The three tests you administer in this case, then, form a test battery.

Note that you would develop and give a different test battery to someone who applies for a different job, such as in maintenance, engineering, graphic design, etc.