What is an example of Split Testing?

Split testing, also known as A/B testing, involves comparing two or more variations of a marketing element to determine which one performs better. In the context of the provided choices, using two different sets of creatives for a specific campaign is a prime example of split testing. This method allows marketers to analyze how different visuals, messaging, or formats resonate with their target audience. By keeping all other variables constant, such as audience targeting and budget, the campaign can clearly show which creative leads to better engagement, clicks, or conversions.

In contrast, selecting different ad placements, increasing budgets mid-campaign, or terminating an ad group do not meet the criteria for split testing. These actions typically affect the overall structure, reach, or execution of the campaign, rather than isolating a singular creative variable for comparison. Therefore, option A is the correct representation of split testing in a digital marketing context.