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Latest Blog Posts From iMarketer 2

In iMarketer on 24 April 2010 tagged imarketer blog posts with no comments

Some of you folks may know that I wrote for Marketing Institute of Singapore’s iMarketer blog.

Just to get you up to speed, here are the latest marketing blog posts I’ve written on iMarketer:

• Useful Marketing ROI Calculator 
• Small Change Big Impact 2
• Small Change Big Impact
• Best Practices For Effective Email Marketing

Enjoy the read!

All success,

Jag Foo

Multivariate Testing – Taguchi Method

In Uncategorized on 15 April 2010 tagged multivariance testing, Taguchi Testing with no comments

In the earlier post, we talk about multivariate testing.

Here’s a more advanced of multivariate testing that I prefer – the Taguchi testing.

Let me explain what’s Taguchi testing is all about.

Taguchi testing is a statistical testing method devised by a Japanese engineer, Dr Genichi Taguchi.

It uses the orthogonal array model instead of the traditional full fractional model (used by Google Website Optimizer). Now that’s all math geek speak, so I’m not going to elaborate on that.

What’s most important is that with Taguchi testing, you can reduce the number of combinations needed for testing.

For example, if you have 4 elements with 2 variations each, you will need to test 16 (2 x 2 x 2 x 2) combinations using the traditional multivariate method.

With the Taguchi method, the number of combinations needed is reduced to only 8.

Introduction To Multivariate Testing

In Uncategorized on 1 April 2010 tagged Google website optimizer, multivariance testing, Split Testing with no comments

In split testing, we test one element of your sales page or website. For example, we can test headline A vs headline B (or vs C, D and so on), and we see which is the winner.

Split testing is pretty easy and straightforward to set up and implement.

But there are several drawbacks.

It’s very time consuming and costly. That’s because you can only test 1 element at a time.

Say we want to also test different images, location of image, sub headlines and so on…we can only do so one element at a time – one after another.

Because of this, by the time you are finished with all the elements, it could be weeks or months later!

You waste more time. And money as well as you incur more cost when the duration of the test drags.