Comments on: Why conversion rate uplift percentages can be confusing http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/ User Experience Design & Research, written by Harry Brignull Tue, 31 Aug 2010 03:20:44 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Kilka ciekawych artykułów marketingu internetowego http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/comment-page-1/#comment-105531 Kilka ciekawych artykułów marketingu internetowego Sat, 01 Aug 2009 11:39:37 +0000 http://www.90percentofeverything.com/?p=1683#comment-105531 [...] konwersji może być mylący? – przed wyciąganiem wniosków z wyższego wskaźnika konwersji warto sprawdzić, czy test strony docelowej spełnia wszystkie warunki prawidłowego [...] [...] konwersji może być mylący? – przed wyciąganiem wniosków z wyższego wskaźnika konwersji warto sprawdzić, czy test strony docelowej spełnia wszystkie warunki prawidłowego [...]

]]> By: Harry Brignull http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/comment-page-1/#comment-105274 Harry Brignull Wed, 29 Jul 2009 11:12:54 +0000 http://www.90percentofeverything.com/?p=1683#comment-105274 Carlo, you're absolutely right - there was a typo in the example. I've edited the post! Carlo, you’re absolutely right – there was a typo in the example. I’ve edited the post!

]]> By: Carlo Valbonesi http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/comment-page-1/#comment-105270 Carlo Valbonesi Wed, 29 Jul 2009 10:51:54 +0000 http://www.90percentofeverything.com/?p=1683#comment-105270 Isn't the increase = 100% instead of 200%? Considering that you compare Day 1: number of users = 1 and Day 2: number of users = 2 The difference is = 1 and 1 is exactly the total number of user of day 1, i.e. 100% of day 1 On day 2 we have double the users buying, but the increase itself compared to day 1 is 100%. Or am I suddenly dumb? :) rgrds Carlo Isn’t the increase = 100% instead of 200%?

Considering that you compare

Day 1: number of users = 1

and

Day 2: number of users = 2

The difference is = 1

and 1 is exactly the total number of user of day 1, i.e. 100% of day 1

On day 2 we have double the users buying, but the increase itself compared to day 1 is 100%.

Or am I suddenly dumb? :)

rgrds

Carlo

]]> By: Harry Brignull http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/comment-page-1/#comment-104864 Harry Brignull Fri, 24 Jul 2009 16:21:47 +0000 http://www.90percentofeverything.com/?p=1683#comment-104864 I think I might buy myself a copy of that, thanks! User Experience design - and web design in general these days - sits at the intersection of science and "craftsmanship". Even if you're trained in both, it's easy to forget to wear both hats simultaneously. I think I might buy myself a copy of that, thanks! User Experience design – and web design in general these days – sits at the intersection of science and “craftsmanship”. Even if you’re trained in both, it’s easy to forget to wear both hats simultaneously.

]]> By: Leif Kendall http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/comment-page-1/#comment-104861 Leif Kendall Fri, 24 Jul 2009 16:12:12 +0000 http://www.90percentofeverything.com/?p=1683#comment-104861 I'm reading Bad Science by Ben Goldacre, in which the author demonstrates how the media like to manufacture health scares by using misleading stats. It's frighteningly easy to manipulate numbers to give the desired impression. And you're right - it's always worth looking behind the headline to see what the numbers really mean. I’m reading Bad Science by Ben Goldacre, in which the author demonstrates how the media like to manufacture health scares by using misleading stats. It’s frighteningly easy to manipulate numbers to give the desired impression.
And you’re right – it’s always worth looking behind the headline to see what the numbers really mean.

]]> By: Harry Brignull http://www.90percentofeverything.com/2009/07/24/why-conversion-rate-uplift-percentages-can-be-confusing/comment-page-1/#comment-104835 Harry Brignull Fri, 24 Jul 2009 10:32:43 +0000 http://www.90percentofeverything.com/?p=1683#comment-104835 I forgot to mention - many thanks to James Page of <a href="http://www.feralabs.com/" rel="nofollow">FeraLabs</a> and Andy Baker of <a href="http://www.ixxy.co.uk/" rel="nofollow">Ixxy</a> for reviewing the draft of this post! I forgot to mention – many thanks to James Page of FeraLabs and Andy Baker of Ixxy for reviewing the draft of this post!

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