When creating an A/B test in Adobe Target, what is the primary purpose of a "control" in the test setup?

Question

Options

• ATo serve as the default content for users who are not part of the test
• BTo measure the impact of the test on a specific subset of users
• CTo ensure that the test does not adversely affect the website's performance
• DTo control the distribution of traffic evenly across variations

• A
  81% (25)
• B
  6% (2)
• C
  3% (1)
• D
  10% (3)

Explanation

In an A/B test, the control is the original, unchanged version of the content - it's the baseline experience against which new variations are measured. Option A is correct because the control acts as the reference point (default content) that all other variations are compared against, allowing you to determine whether a change improved, hurt, or had no effect on your metric.

Why the distractors are wrong:

• B is wrong because measuring impact on a subset describes segmentation or reporting, not the role of a control.
• C is wrong because performance monitoring is a separate concern (handled by QA/monitoring tools), not the control's job.
• D is wrong because traffic distribution is managed by traffic allocation settings, not the control itself - the control can receive any percentage of traffic.

Memory tip: Think of the control as the "do nothing" group in a science experiment - it's the constant that proves your variable (the variation) caused any difference you observe.

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