Multivariate Split Testing

19.06.07

Yesterday, I posted up some images of Buy buttons and add to basket buttons, I feel that I need to give some more information.

The E-commerce website is selling INKJET CARTRIDGES, Ok this is important, because ink is a stress purchase, you don’t sit at your computer and think hmmm I’m going to treat my Inkjet printer to some new ink. No you usually have just printed out a document and half way through the quality slowly disappears and you think I need INK NOW !!

so with that in mind here are some of the things we have tested..

Straplines :

Buy one get one free : yes, people still want a bargain
Next day UK delivery : this is important… it’s a stress purchase
Great prices delivered Next Day : a happy mix of both

Buttons :

This must be a UK thing, in the UK, BUY works best at the moment, I think it’s because in really life if I add something to a shopping basket ( btw they are trolley’s in the UK, not Carts ;) ) I have already committed to the BUY. But I i’m still running the test, so we will see.

Data :

The follow up email, when spilt testing send a follow up email asking why they purchased from You. This can really help with straplines, it gives you a really good idea why people purchased, Things like :

“you had it in stock”
“great price and next day delivery”
“I don’t know hahaha, I guess I felt secure”
“I saw your brand at a friends house”
“Friend told me to use you”
“Easy to find, Easy to buy”

Being too Close to your industry :

Get your wife, girlfriend, mother, father, friends anyone not in your industry to look at the site and ask simple questions like.

What does this site sell or do ? ( don’t help them, don’t even point out which button to press ! )
How do you get to buy this product ?
If you had to use a search engine to find my product what would you search for ?

and just listen to the answers, no prompting or helping them, in the real world you can’t be there with every cusmtomer.

DaveN

4 Comments

  • 1

    >>BUY works best at the moment

    Quiet Man

    19th June 2007 @ 14:24

  • 2

    “BUY works best at the moment”
    For just this site, or all your UK ecomm sites? I’d expect Buy Now to work well for an inkjet site, its a straightforward purchase. But for more expensive or complex products, some types of shopper will prefer Add to Cart (or Basket, or Trolley) as its less commitment. A lot of sites with Add to Cart buttons also include a reassuring line ‘You can always remove it later’ for just these types of browsers / shoppers.
    Re - Cart v Basket v Trolley. Don’t be a metric martyr! ‘Cart’ may be an American term, but its also very familiar for Web shoppers. They come to expect it. And Online shoppers like familiarity - makes us feel safe.
    Follow Up Email - great idea
    User Testing - yep, great ideas. More such tips in Steve Krug’s Don’t Make Me Think!

    Quiet Man

    19th June 2007 @ 14:24

  • 3

    I think being to close to the industry is the biggest problems most ecommerce developers face. “Real” user testing is priceless.

    Jeremy Luebke
    http://www.xuru.com

    19th June 2007 @ 15:54

  • 4

    and ‘coffee shop testing’ is cheap and fun :)

    Lea de Groot
    http://elysiansystems.com/blog/

    25th June 2007 @ 02:29

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