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	<title>Comments on: Testing Add-to-Cart Buttons: Stuck in the Middle With You</title>
	<atom:link href="http://www.grokdotcom.com/index.php/2008/01/25/call-to-action-split-testing/feed" rel="self" type="application/rss+xml" />
	<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/</link>
	<description>Marketing blog focused on marketing optimization, improving website conversion rates, search engine marketing, web analytics, word of mouth, etc.</description>
	<lastBuildDate>Sun, 08 Nov 2009 13:05:29 -0600</lastBuildDate>
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		<title>By: Genetic</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-1201194</link>
		<dc:creator>Genetic</dc:creator>
		<pubDate>Fri, 16 Oct 2009 16:53:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-1201194</guid>
		<description>Great article!

I just add this article in my bookmark.</description>
		<content:encoded><![CDATA[<p>Great article!</p>
<p>I just add this article in my bookmark.</p>
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		<title>By: ThongJsn</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-1199812</link>
		<dc:creator>ThongJsn</dc:creator>
		<pubDate>Mon, 12 Oct 2009 08:50:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-1199812</guid>
		<description>I agree with  idea.</description>
		<content:encoded><![CDATA[<p>I agree with  idea.</p>
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		<title>By: canadian bodybuilding</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-1157750</link>
		<dc:creator>canadian bodybuilding</dc:creator>
		<pubDate>Tue, 07 Apr 2009 15:03:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-1157750</guid>
		<description>very interesting</description>
		<content:encoded><![CDATA[<p>very interesting</p>
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		<title>By: John Quarto-vonTivadar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-1120183</link>
		<dc:creator>John Quarto-vonTivadar</dc:creator>
		<pubDate>Sun, 14 Dec 2008 18:58:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-1120183</guid>
		<description>Thanks, Florida. Certainly nothing controversial there -- I think you&#039;re echoing the theme of this blog post -- that the left side add-to-cart doesn&#039;t seem to improve conversion at all, almost as expected.

I wouldn&#039;t mind hearing more details about how you did the Crutchfield test -- are you able to share them?</description>
		<content:encoded><![CDATA[<p>Thanks, Florida. Certainly nothing controversial there &#8212; I think you&#8217;re echoing the theme of this blog post &#8212; that the left side add-to-cart doesn&#8217;t seem to improve conversion at all, almost as expected.</p>
<p>I wouldn&#8217;t mind hearing more details about how you did the Crutchfield test &#8212; are you able to share them?</p>
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		<title>By: florida internet marketing</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-1120180</link>
		<dc:creator>florida internet marketing</dc:creator>
		<pubDate>Sun, 14 Dec 2008 18:49:45 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-1120180</guid>
		<description>Not to be controversial, but I&#039;ve tried the exact design from crutchfield before. My boss practically made me clone their website, and we didn&#039;t see any improvement over our previous design. We did however see an improvement when we copied adirondackchairs.com That&#039;s a site that&#039;s part of the netshops network. It&#039;s really usable, but it&#039;s not that exciting. It tested really well against other designs we tried, and we tried to test out things that we didn&#039;t like, but they always lost against the adirondack design.</description>
		<content:encoded><![CDATA[<p>Not to be controversial, but I&#8217;ve tried the exact design from crutchfield before. My boss practically made me clone their website, and we didn&#8217;t see any improvement over our previous design. We did however see an improvement when we copied adirondackchairs.com That&#8217;s a site that&#8217;s part of the netshops network. It&#8217;s really usable, but it&#8217;s not that exciting. It tested really well against other designs we tried, and we tried to test out things that we didn&#8217;t like, but they always lost against the adirondack design.</p>
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		<title>By: &#34;What Should I Test?&#34; Free Google + Future Now Webinar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-553083</link>
		<dc:creator>&#34;What Should I Test?&#34; Free Google + Future Now Webinar</dc:creator>
		<pubDate>Mon, 03 Mar 2008 15:42:25 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-553083</guid>
		<description>[...] received emails and comments from people who want to know the secret. They&#039;ve read a few posts on website optimization testing, but they&#039;re disillusioned. Their tests haven&#039;t been [...]</description>
		<content:encoded><![CDATA[<p>[...] received emails and comments from people who want to know the secret. They&#39;ve read a few posts on website optimization testing, but they&#39;re disillusioned. Their tests haven&#39;t been [...]</p>
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		<title>By: carpet protection</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-532031</link>
		<dc:creator>carpet protection</dc:creator>
		<pubDate>Sat, 23 Feb 2008 20:31:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-532031</guid>
		<description>Hmmm...very interesting.  Has anyone tried to contact their web team to see if they actually did test this?  Anyone willing to test it themselves?</description>
		<content:encoded><![CDATA[<p>Hmmm&#8230;very interesting.  Has anyone tried to contact their web team to see if they actually did test this?  Anyone willing to test it themselves?</p>
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		<title>By: Breakthrough Ecommerce Library &#187; Blog Archive &#187; Calls To Action - Left or Right?</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-488022</link>
		<dc:creator>Breakthrough Ecommerce Library &#187; Blog Archive &#187; Calls To Action - Left or Right?</dc:creator>
		<pubDate>Tue, 05 Feb 2008 02:48:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-488022</guid>
		<description>[...] very smart people have contributed to this conversation, so it&#8217;s worth checking out. Testing Add-to-Cart Buttons: Stuck in the Middle With You  We haven&#8217;t come up with any definitive answers yet, but the discussion is lively and has [...]</description>
		<content:encoded><![CDATA[<p>[...] very smart people have contributed to this conversation, so it&#8217;s worth checking out. Testing Add-to-Cart Buttons: Stuck in the Middle With You  We haven&#8217;t come up with any definitive answers yet, but the discussion is lively and has [...]</p>
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		<title>By: Steen Rasmussen</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-487484</link>
		<dc:creator>Steen Rasmussen</dc:creator>
		<pubDate>Mon, 04 Feb 2008 22:17:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-487484</guid>
		<description>Some interesting aspect and points to this discussion but at the same time it seem we try to remove the discussion of left and right from the actual design of the page. 

There might be some universal truths about left and right, but at the end of the day the main issue is connected to the individual design - and the way the design drives our eyes.  

When looking at the page live on the site (http://www.crutchfield.com/S-fahcfnLTVOg/App/Product/Item/Main.aspx?I=472TOUCH16&amp;cc=01&amp;wm=cl), the lack of content to the right of the product is affecting your behavior. 

It forces your attention in one of two other directions - either to the left to the price and the call to action or down to... absolutely nothing. 

The most prominent problem with this design might well be the lack of a secondary call to action at the bottom of the page to collect the &quot;lost&quot; users. Having just one “call to action” on this page seems something of a gambit. 

When all is said and done I do agree with everyone that challenging a convention is a challenge you want to measure the result of, not gamble you business on.</description>
		<content:encoded><![CDATA[<p>Some interesting aspect and points to this discussion but at the same time it seem we try to remove the discussion of left and right from the actual design of the page. </p>
<p>There might be some universal truths about left and right, but at the end of the day the main issue is connected to the individual design &#8211; and the way the design drives our eyes.  </p>
<p>When looking at the page live on the site (<a href="http://www.crutchfield.com/S-fahcfnLTVOg/App/Product/Item/Main.aspx?I=472TOUCH16&amp;cc=01&amp;wm=cl)">http://www.crutchfield.com/S-fahcfnLTVOg/App/Product/Item/Main.aspx?I=472TOUCH16&amp;cc=01&amp;wm=cl)</a>, the lack of content to the right of the product is affecting your behavior. </p>
<p>It forces your attention in one of two other directions &#8211; either to the left to the price and the call to action or down to&#8230; absolutely nothing. </p>
<p>The most prominent problem with this design might well be the lack of a secondary call to action at the bottom of the page to collect the &#8220;lost&#8221; users. Having just one “call to action” on this page seems something of a gambit. </p>
<p>When all is said and done I do agree with everyone that challenging a convention is a challenge you want to measure the result of, not gamble you business on.</p>
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		<title>By: John Quarto-vonTivadar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-479532</link>
		<dc:creator>John Quarto-vonTivadar</dc:creator>
		<pubDate>Thu, 31 Jan 2008 23:18:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-479532</guid>
		<description>Hi Mark,  you&#039;ve brought up a great point. I think it&#039;s worth repeating the other side of the same coin -- the &quot;F&quot; pattern reported by Neilsen et al, is simply a reported observation of how visitors eye-scanned a page. This does not guarantee it&#039;s a preference for how they gather such information and if designers know about the &quot;F&quot; pattern and repeat it, they run the real risk of a &quot;lemmings effect&quot; wherein they are all doing it -- and visitors are all scanning that way -- for no reason other than everyone else also doing it.  Hardly a way to stand out in a crowd, but nevertheless safe. Which came first, the designer or the visitor?

It makes you wonder, are visitors just trained that way now for web surfing? And if so, how strong is the habit? I&#039;ve got a pretty strong habit of good penmanship (Thank You, Sister Mary Agnes! Your wooden ruler inflicted quite a bit of unintended &quot;cursive&quot;, if you&#039;ll pardon the pun). That penmanship would be hard to break now, for sure. But I&#039;ve also got a more conventional habit of putting my fork on the left when sitting to dinner -- a habit I could easily by-pass with just a little effort. So is the &quot;F&quot; effect a deep or a shallow scanning habit? Does it come from the actual preferences of the visitors, or does the common elements of design during the web&#039;s first decade simply imbue a certain level of &quot;F&quot; proclivity?

And you&#039;re correct, Bryan and I are in fact in the midst of a new book, precisely what we were working on when the Left-Side Add-To-Cart discussion first occured.  I&#039;ll leave details for a later post once we have a better sense from the major publisher as to release date and the like.</description>
		<content:encoded><![CDATA[<p>Hi Mark,  you&#8217;ve brought up a great point. I think it&#8217;s worth repeating the other side of the same coin &#8212; the &#8220;F&#8221; pattern reported by Neilsen et al, is simply a reported observation of how visitors eye-scanned a page. This does not guarantee it&#8217;s a preference for how they gather such information and if designers know about the &#8220;F&#8221; pattern and repeat it, they run the real risk of a &#8220;lemmings effect&#8221; wherein they are all doing it &#8212; and visitors are all scanning that way &#8212; for no reason other than everyone else also doing it.  Hardly a way to stand out in a crowd, but nevertheless safe. Which came first, the designer or the visitor?</p>
<p>It makes you wonder, are visitors just trained that way now for web surfing? And if so, how strong is the habit? I&#8217;ve got a pretty strong habit of good penmanship (Thank You, Sister Mary Agnes! Your wooden ruler inflicted quite a bit of unintended &#8220;cursive&#8221;, if you&#8217;ll pardon the pun). That penmanship would be hard to break now, for sure. But I&#8217;ve also got a more conventional habit of putting my fork on the left when sitting to dinner &#8212; a habit I could easily by-pass with just a little effort. So is the &#8220;F&#8221; effect a deep or a shallow scanning habit? Does it come from the actual preferences of the visitors, or does the common elements of design during the web&#8217;s first decade simply imbue a certain level of &#8220;F&#8221; proclivity?</p>
<p>And you&#8217;re correct, Bryan and I are in fact in the midst of a new book, precisely what we were working on when the Left-Side Add-To-Cart discussion first occured.  I&#8217;ll leave details for a later post once we have a better sense from the major publisher as to release date and the like.</p>
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		<title>By: Mark G</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-479504</link>
		<dc:creator>Mark G</dc:creator>
		<pubDate>Thu, 31 Jan 2008 23:05:00 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-479504</guid>
		<description>Michelle,

but there&#039;s also plenty of other research which proves completely the opposite. What to do?

As the crew at Future Now keep pointing out, conversion rates for most sites are till stuck at 2%.

We need to be careful about accepting anything as definitive when it comes to web design. With conversion rates that low, everything is up for reinvention.

The F pattern merely shows that that&#039;s how most web designers layout their pages, which forces people to look in that pattern.

There&#039;s another great post on this site. (the bunnyfoot sunsilk ad test) that shows that just by changing the direction of a model&#039;s eyes, you can drastically change where people look.

Now, that&#039;s got me thinking. The effectiveness of Calls to Action are obviously also dependent on what&#039;s around them. So how do we go about getting some definitive tests?

As I said in my earlier reply, publishing and advertising in the west already charge a premium for right placed content.

It would be great to find out their research. Anybody know anyone in advertising who can get hold of this research. I know Ogilvy did a whole lot in the 60&#039;s and 70&#039;s but I lent my book of his to somebody and I never saw it again.

PS John, this is obviously a great post and hot topic. Maybe theirs another article or chapter in an upcoming book on this?</description>
		<content:encoded><![CDATA[<p>Michelle,</p>
<p>but there&#8217;s also plenty of other research which proves completely the opposite. What to do?</p>
<p>As the crew at Future Now keep pointing out, conversion rates for most sites are till stuck at 2%.</p>
<p>We need to be careful about accepting anything as definitive when it comes to web design. With conversion rates that low, everything is up for reinvention.</p>
<p>The F pattern merely shows that that&#8217;s how most web designers layout their pages, which forces people to look in that pattern.</p>
<p>There&#8217;s another great post on this site. (the bunnyfoot sunsilk ad test) that shows that just by changing the direction of a model&#8217;s eyes, you can drastically change where people look.</p>
<p>Now, that&#8217;s got me thinking. The effectiveness of Calls to Action are obviously also dependent on what&#8217;s around them. So how do we go about getting some definitive tests?</p>
<p>As I said in my earlier reply, publishing and advertising in the west already charge a premium for right placed content.</p>
<p>It would be great to find out their research. Anybody know anyone in advertising who can get hold of this research. I know Ogilvy did a whole lot in the 60&#8217;s and 70&#8217;s but I lent my book of his to somebody and I never saw it again.</p>
<p>PS John, this is obviously a great post and hot topic. Maybe theirs another article or chapter in an upcoming book on this?</p>
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		<title>By: MichelleT</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-479101</link>
		<dc:creator>MichelleT</dc:creator>
		<pubDate>Thu, 31 Jan 2008 19:02:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-479101</guid>
		<description>Web usability experts (Jakob Nielsen) have done studies that show web viewing patterns following an &quot;F&quot; pattern where people tend to look across the top of a site, and down the left hand side. Based on that logic, the Crutchfield layout is actually right in line with such eye-pattern studies. It would be nice to test that theory - but as many have already pointed out, that seems very difficult for the average site.</description>
		<content:encoded><![CDATA[<p>Web usability experts (Jakob Nielsen) have done studies that show web viewing patterns following an &#8220;F&#8221; pattern where people tend to look across the top of a site, and down the left hand side. Based on that logic, the Crutchfield layout is actually right in line with such eye-pattern studies. It would be nice to test that theory &#8211; but as many have already pointed out, that seems very difficult for the average site.</p>
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		<title>By: Is Your Site Ready for Pay Per Click? &#187; Aspects of Home Business Blog</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-477229</link>
		<dc:creator>Is Your Site Ready for Pay Per Click? &#187; Aspects of Home Business Blog</dc:creator>
		<pubDate>Thu, 31 Jan 2008 00:07:23 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-477229</guid>
		<description>[...] you want to read some great tips on testing your site for conversions, including things like the placement of the add to cart button, head over to Grokdotcom. Some of it will be very difficult for beginning webmasters, but [...]</description>
		<content:encoded><![CDATA[<p>[...] you want to read some great tips on testing your site for conversions, including things like the placement of the add to cart button, head over to Grokdotcom. Some of it will be very difficult for beginning webmasters, but [...]</p>
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		<title>By: LynnS</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-476859</link>
		<dc:creator>LynnS</dc:creator>
		<pubDate>Wed, 30 Jan 2008 19:42:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-476859</guid>
		<description>I do find it interesting that the left nav is replaced by the buy option on the product page - a position where people are used to looking for further navigation options ... Has anyone ever tested what happens at that point in the buying cycle when someone is presented with something new to choose from?</description>
		<content:encoded><![CDATA[<p>I do find it interesting that the left nav is replaced by the buy option on the product page &#8211; a position where people are used to looking for further navigation options &#8230; Has anyone ever tested what happens at that point in the buying cycle when someone is presented with something new to choose from?</p>
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		<title>By: John Quarto-vonTivadar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-474968</link>
		<dc:creator>John Quarto-vonTivadar</dc:creator>
		<pubDate>Tue, 29 Jan 2008 22:27:06 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-474968</guid>
		<description>Hmm, Cart Blog, please do not put words in my mouth. I did not say I wasn&#039;t a fan of Crutchfield, nor that Crutchfield doesn&#039;t test -- in fact, I bent over backward to mention that we had no special insight into Crutchfield&#039;s approach to testing one way or the other.

What I did assert outright was that testing is infrequently done at companies, even in 2008. And so, in the absence of any evidence to the contrary, unorthodox UI use should best be assumed as non-tested.

Nevertheless, the point of the article -- perhaps missed in your rush to link to us -- is not what Crutchfield is doing in the specific, but how companies in general can begin to think about testing techniques for unorthodox elements when they find themselves in a testing culture where such experiments can occur.</description>
		<content:encoded><![CDATA[<p>Hmm, Cart Blog, please do not put words in my mouth. I did not say I wasn&#8217;t a fan of Crutchfield, nor that Crutchfield doesn&#8217;t test &#8212; in fact, I bent over backward to mention that we had no special insight into Crutchfield&#8217;s approach to testing one way or the other.</p>
<p>What I did assert outright was that testing is infrequently done at companies, even in 2008. And so, in the absence of any evidence to the contrary, unorthodox UI use should best be assumed as non-tested.</p>
<p>Nevertheless, the point of the article &#8212; perhaps missed in your rush to link to us &#8212; is not what Crutchfield is doing in the specific, but how companies in general can begin to think about testing techniques for unorthodox elements when they find themselves in a testing culture where such experiments can occur.</p>
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		<title>By: The Cart Blog &#187; Blog Archive &#187; Changing your cart&#8217;s look? Be sure to test</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-474026</link>
		<dc:creator>The Cart Blog &#187; Blog Archive &#187; Changing your cart&#8217;s look? Be sure to test</dc:creator>
		<pubDate>Tue, 29 Jan 2008 12:14:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-474026</guid>
		<description>[...] Brian Eisenberg&#8217;s company wrote an article about Crutchfield&#8217;s new left hand side call to action.  They&#8217;re not big fans &#8230; and they&#8217;re guessing it came to pass because of a lack of testing.  addthis_url = &#039;http%3A%2F%2Fthecartblog.com%2F2008%2F01%2F29%2Fchanging-your-carts-look-be-sure-to-test%2F&#039;; addthis_title = &#039;Changing+your+cart%27s+look%3F++Be+sure+to+test&#039;; addthis_pub = &#039;&#039;; [...]</description>
		<content:encoded><![CDATA[<p>[...] Brian Eisenberg&#8217;s company wrote an article about Crutchfield&#8217;s new left hand side call to action.  They&#8217;re not big fans &#8230; and they&#8217;re guessing it came to pass because of a lack of testing.  addthis_url = &#8216;http%3A%2F%2Fthecartblog.com%2F2008%2F01%2F29%2Fchanging-your-carts-look-be-sure-to-test%2F&#8217;; addthis_title = &#8216;Changing+your+cart%27s+look%3F++Be+sure+to+test&#8217;; addthis_pub = &#8221;; [...]</p>
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		<title>By: Shopping Cart Checkout Button Placement</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-473768</link>
		<dc:creator>Shopping Cart Checkout Button Placement</dc:creator>
		<pubDate>Tue, 29 Jan 2008 09:12:30 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-473768</guid>
		<description>[...] what Future Now has to say about this unorthodox e-commerce [...]</description>
		<content:encoded><![CDATA[<p>[...] what Future Now has to say about this unorthodox e-commerce [...]</p>
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		<title>By: Crutchfield.com and left-side add-to-cart butttons &#8212; a test? : Web site effectiveness blog: Rick Whittington Consulting</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-473382</link>
		<dc:creator>Crutchfield.com and left-side add-to-cart butttons &#8212; a test? : Web site effectiveness blog: Rick Whittington Consulting</dc:creator>
		<pubDate>Tue, 29 Jan 2008 05:07:43 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-473382</guid>
		<description>[...] the add-to-cart button on the left column. Rather than showing a screen here, you can see one on Grokdotcom&#8217;s blog post or at [...]</description>
		<content:encoded><![CDATA[<p>[...] the add-to-cart button on the left column. Rather than showing a screen here, you can see one on Grokdotcom&#8217;s blog post or at [...]</p>
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		<title>By: John Quarto-vonTivadar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-472582</link>
		<dc:creator>John Quarto-vonTivadar</dc:creator>
		<pubDate>Mon, 28 Jan 2008 20:09:02 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-472582</guid>
		<description>hmm, I *hope* that&#039;s not the point Ricardo is making, because you don&#039;t in fact need a huge volume of conversions to do this sort of test. You&#039;ll do your first test (as originally described) simply to distinguish whether left or right does better generically and at that point it doesn&#039;t take a large sample to distinguish a non-random distribution of results (i.e., something other than 50/50) due to something other than random chance.  You don&#039;t need high conversion rates per se, you simply need sufficient traffic to each element in the test for the results to be statistically significant, regardless of what they do once they see the AddToCart.

Then, following part 2 of the test, you&#039;d only be looking at on-going conversion of those who did convert earlier, i.e., you&#039;re repeat customers. Although that, presumably, is where the left-side AddToCart customers will need to build up some traffic  for significance, you&#039;re also drawing that traffic from a sub-group of your customers who&#039;ve by definition have already shown a propensity to buy your products (repeat customer typically have a higher average conversion rate than first-time customers -- atleast for businesses who have legitimately good products that satisfy customer needs). So you&#039;re starting from a higher conversion rate population anyway, which will help tremendously with the return traffic you&#039;ll need for significance

In other words, if your site&#039;s conversion rate is so low that you can&#039;t get enough data to make a start at this sort of experiment then this isn&#039;t the sort of experiment you should be considering anyway -- you should be doing much simpler optimizations that increase overall conversion (the so-called &quot;low hanging fruit&quot;) before tackling what may in fact be a persuasional challenge for your company&#039;s business topology.</description>
		<content:encoded><![CDATA[<p>hmm, I *hope* that&#8217;s not the point Ricardo is making, because you don&#8217;t in fact need a huge volume of conversions to do this sort of test. You&#8217;ll do your first test (as originally described) simply to distinguish whether left or right does better generically and at that point it doesn&#8217;t take a large sample to distinguish a non-random distribution of results (i.e., something other than 50/50) due to something other than random chance.  You don&#8217;t need high conversion rates per se, you simply need sufficient traffic to each element in the test for the results to be statistically significant, regardless of what they do once they see the AddToCart.</p>
<p>Then, following part 2 of the test, you&#8217;d only be looking at on-going conversion of those who did convert earlier, i.e., you&#8217;re repeat customers. Although that, presumably, is where the left-side AddToCart customers will need to build up some traffic  for significance, you&#8217;re also drawing that traffic from a sub-group of your customers who&#8217;ve by definition have already shown a propensity to buy your products (repeat customer typically have a higher average conversion rate than first-time customers &#8212; atleast for businesses who have legitimately good products that satisfy customer needs). So you&#8217;re starting from a higher conversion rate population anyway, which will help tremendously with the return traffic you&#8217;ll need for significance</p>
<p>In other words, if your site&#8217;s conversion rate is so low that you can&#8217;t get enough data to make a start at this sort of experiment then this isn&#8217;t the sort of experiment you should be considering anyway &#8212; you should be doing much simpler optimizations that increase overall conversion (the so-called &#8220;low hanging fruit&#8221;) before tackling what may in fact be a persuasional challenge for your company&#8217;s business topology.</p>
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		<title>By: Smufty</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-472536</link>
		<dc:creator>Smufty</dc:creator>
		<pubDate>Mon, 28 Jan 2008 19:34:19 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-472536</guid>
		<description>I think the point Ricardo may be making was that to perform a test you need a reliable high volume of conversions, which excludes most etailers, plus the technical issues of product-based websites which may be doing all sorts of wizardry in the background.

Once you get into the &quot;You previously bought that, so you may like this&quot; sort of stuff, plus tracking such data, auto-generated offers, seasonal stuff and all that jazz - moving the button from one side of the screen to the other is not always as simple as it sounds!

Sometimes there&#039;s a neat and elegant way of doing it, and sometimes it would be easiest to run the entire system twice rather than mess around trying to be smart. Most off the shelf CMS shopping systems were designed before such testing became popular so it&#039;s not a no-brainer by any means.

It strikes me as one of those things some bright young spark comes up with, the IT claim they can do it rather than look silly and then it all goes horribly wrong when some customers get billed twice, some lose their orders and by the way, here&#039;s an email saying our logo is half off the screen and it looks crap in Firefox.

Of course that was the bad old day, WE are so damn smart we never have ANY bugs or screwups and everything will work perfectly what with CSS and being net 2.0 an&#039; all. It&#039;s just that old-school management have heard all that before and know how quickly &quot;There&#039;s a problem...&quot; features in conversations.</description>
		<content:encoded><![CDATA[<p>I think the point Ricardo may be making was that to perform a test you need a reliable high volume of conversions, which excludes most etailers, plus the technical issues of product-based websites which may be doing all sorts of wizardry in the background.</p>
<p>Once you get into the &#8220;You previously bought that, so you may like this&#8221; sort of stuff, plus tracking such data, auto-generated offers, seasonal stuff and all that jazz &#8211; moving the button from one side of the screen to the other is not always as simple as it sounds!</p>
<p>Sometimes there&#8217;s a neat and elegant way of doing it, and sometimes it would be easiest to run the entire system twice rather than mess around trying to be smart. Most off the shelf CMS shopping systems were designed before such testing became popular so it&#8217;s not a no-brainer by any means.</p>
<p>It strikes me as one of those things some bright young spark comes up with, the IT claim they can do it rather than look silly and then it all goes horribly wrong when some customers get billed twice, some lose their orders and by the way, here&#8217;s an email saying our logo is half off the screen and it looks crap in Firefox.</p>
<p>Of course that was the bad old day, WE are so damn smart we never have ANY bugs or screwups and everything will work perfectly what with CSS and being net 2.0 an&#8217; all. It&#8217;s just that old-school management have heard all that before and know how quickly &#8220;There&#8217;s a problem&#8230;&#8221; features in conversations.</p>
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		<title>By: Zachary Abbell</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-472367</link>
		<dc:creator>Zachary Abbell</dc:creator>
		<pubDate>Mon, 28 Jan 2008 17:34:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-472367</guid>
		<description>Ricardo,
It&#039;s very easy for a 3rd party vendor to help you run such product page tests.  My company runs countless such tests...You just need to be willing to look outside your current IT team!

Hope not so see you trying to push over buildings with your bare hands but please send pictures if/when you do.

Thanks.</description>
		<content:encoded><![CDATA[<p>Ricardo,<br />
It&#8217;s very easy for a 3rd party vendor to help you run such product page tests.  My company runs countless such tests&#8230;You just need to be willing to look outside your current IT team!</p>
<p>Hope not so see you trying to push over buildings with your bare hands but please send pictures if/when you do.</p>
<p>Thanks.</p>
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		<title>By: John Quarto-vonTivadar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-472365</link>
		<dc:creator>John Quarto-vonTivadar</dc:creator>
		<pubDate>Mon, 28 Jan 2008 17:32:23 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-472365</guid>
		<description>Hi Ricardo,

It&#039;s a sad state we&#039;re in, isn&#039;t it?  It&#039;s not that the left-side versus right-side AddToCart is not determinable -- we could actually design experiments to measure it and a host of other important varaibles....but there&#039;s no collective corporate Will to do so.</description>
		<content:encoded><![CDATA[<p>Hi Ricardo,</p>
<p>It&#8217;s a sad state we&#8217;re in, isn&#8217;t it?  It&#8217;s not that the left-side versus right-side AddToCart is not determinable &#8212; we could actually design experiments to measure it and a host of other important varaibles&#8230;.but there&#8217;s no collective corporate Will to do so.</p>
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		<title>By: John Quarto-vonTivadar</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-472325</link>
		<dc:creator>John Quarto-vonTivadar</dc:creator>
		<pubDate>Mon, 28 Jan 2008 16:59:29 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-472325</guid>
		<description>Mark, Linda, Audio:  thanks so much for your comments.  Absolutely it is conventional for that AddToCart to be on the right. I suspect it goes hand in hand with reading from left to right (easy to find out how in right to left languages (Hebrew, Arabic) where do those language-specific sites tend to put AddToCart?  And what about Japanese when read top to bottom?  You&#039;d think in all cases you&#039;d put the AddToCart at the place in the prose where the persuasive thought comes to mind for the customer to say &quot;I want&quot;.</description>
		<content:encoded><![CDATA[<p>Mark, Linda, Audio:  thanks so much for your comments.  Absolutely it is conventional for that AddToCart to be on the right. I suspect it goes hand in hand with reading from left to right (easy to find out how in right to left languages (Hebrew, Arabic) where do those language-specific sites tend to put AddToCart?  And what about Japanese when read top to bottom?  You&#8217;d think in all cases you&#8217;d put the AddToCart at the place in the prose where the persuasive thought comes to mind for the customer to say &#8220;I want&#8221;.</p>
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		<title>By: Ricardo</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-472282</link>
		<dc:creator>Ricardo</dc:creator>
		<pubDate>Mon, 28 Jan 2008 16:30:58 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-472282</guid>
		<description>You know how easy it would be for the e-tailer I work for to test add-to-cart button placement?

As easy as it would be for me to walk over to 34th St and topple the Empire State Building with my bare hands.

Dream on, guys.</description>
		<content:encoded><![CDATA[<p>You know how easy it would be for the e-tailer I work for to test add-to-cart button placement?</p>
<p>As easy as it would be for me to walk over to 34th St and topple the Empire State Building with my bare hands.</p>
<p>Dream on, guys.</p>
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		<title>By: Linda Bustos</title>
		<link>http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/comment-page-1/#comment-468869</link>
		<dc:creator>Linda Bustos</dc:creator>
		<pubDate>Sat, 26 Jan 2008 05:01:06 +0000</pubDate>
		<guid isPermaLink="false">http://www.grokdotcom.com/2008/01/25/call-to-action-split-testing/#comment-468869</guid>
		<description>Mark makes a great point.

I was thinking you may need to test this with people who have never used the web before - and have not been conditioned to add to cart on the right. Now, that would make for an *interesting* and probably frustrating test!!</description>
		<content:encoded><![CDATA[<p>Mark makes a great point.</p>
<p>I was thinking you may need to test this with people who have never used the web before &#8211; and have not been conditioned to add to cart on the right. Now, that would make for an *interesting* and probably frustrating test!!</p>
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