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Call Extension A/B test?

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# 1
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I want to set up an A/B test for an adwords ad where one version has a call extension and the other does not to test engagement. Is this possible?

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Marked as Best Answer.
Accepted by topic author Rachel L
September 2015

Re: Call Extension A/B test?

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# 2
Top Contributor

@Rachel L

Since  ads with extensions  are shown above the search results, while, without, can be shown anywhere on the SERP, the comparison  between the two versions is not  "within the same testing conditions". (In other words, there could be other factors which will affect whether the ad is clicked or not, hence the test could be "statistically biased"

Thus, AdWords campaign  experiments do not  offer  ad extensions A/B testing,


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