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experiment control groups versus experiments

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# 1
Visitor ✭ ✭ ✭

I want to test four different ad texts for a new campaign. I would like to use the experiment mode since it automatically measures statistical differences.

 

The problem is that I have no 'control' group. I have four different new ads (experiments) that I want to compare to one another. Is it possible? The experimental settings require me to set a ratio of experimental to control changes.

 

I guess I could just set it up as a regular (not experimental) campaign and force the ads to rotate evenly and force them to use the same manual bid?

 

Thanks for the advice.

 

Michael

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Accepted by topic author Michael H
September 2015

Re: experiment control groups versus experiments

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# 2
Top Contributor

Hello Michael

You are correct!!;

This is very confusing with testing different ad-copies  (Since, your control group is actually your current ad with the current ad-copy)

When testing ad-copy I recommend switching to an even rotation (of ads ), and test which ads are performing better. This is the easiest way, that after a short time  shows  results that are statistically significant . (You don't need a  "statistical analysis" by the system "to accept" an ad-text with a CTR twice or 3 times better than the original text...)

 

-Moshe

Moshe, AdWords Top Contributor , Twitter | Linkedin | Community Profile | Ad-Globe
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