factorial design experiments

Factorial design: A powerful research tool

In this article, we’ll discuss factorial design experiments, a powerful methodology any researcher must know. Like any statistical research technique, it may sound a bit heavy. Therefore, I tried to simplify the contents in order to accurately explain what is factorial design (or factorial experiments) and how to use...

Is site speed important to rank in search engines?

Is site speed important to rank in search engines?

From time to time, we are asked to improve site speed (SS for short) for websites. The reason for this is due to the belief that Google, Bing and other search engines will rank the sites higher if they load fast. Well, the question is… is it correct? And...

Multivariate Testing and A/B Testing.

A / B and Multivariate Testing: Get True Results (Part 2)

Article about A/B and Multivariate Testing. If you want to start with part 1, please go to A/B and Multivariate Testing. What are they? (Part 1) Multivariate Testing (MVT) First of all, and to avoid confusion, this test is not the Multivariate analysis of variance, which is a much more...

A/B testing

A / B and Multivariate Testing: Get True Results (Part 1)

Note: this article about A/B Testing and Multivariate Testing methodology was updated from the 2018 original on February 12, 2021. Learning how to perform A/B and Multivariate Testing is of paramount importance for any webmaster. Here we’ll see what these techniques are, and how to use them. A true¬†user...

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