True or False: To effectively isolate the impact of creative changes, it is recommended to test only one variable at a time in a creative test.
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Correct answer: True.
Why this is the answer
To accurately measure the impact of a creative change, you should test one variable at a time (e.g., headline, image, CTA, format). If you change multiple elements at once, you won’t know which specific change caused the performance difference. This controlled approach ensures clearer insights and more reliable optimization.
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