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View Full Version : Incrementality?


Soze
09-23-2005, 03:57 PM
Just wondered if anyone here has ever tried to test the incremental effect of Paid searches over organic-only?

The only way I can think of calculating this is if Google Adwords would run a custom Paid algorithm where they would serve up a NON-paid results page to a random proportion of searches that normally would have provided Paid results.

Of course, to measure the effectiveness of this the target website would have to be able to measure which results page visitors landed at, but as this depends on your site it's probably the more doable part of the process.

Anyone have any idea whether Google would be willing -- or able -- to provide such a treated vs. control methodology?

AussieWebmaster
10-03-2005, 02:27 PM
Never happen... but you can measure clicks for top two or three blue bar listings and top organic listings with the help of a competitor or two.

Yahoo is a little easier with bid by position....

Though what needs to be considered also is what words are presented in the copy that is listed... these can be different in PPC where you choose and organic where there are all sorts of rules...

The name of the advertiser may also have some branded weight which impacts the listings....

Not an easy thing to isolate even under the best of conditions.