We want to test a set of five users to compare usability between our existing application navigation and our proposed next generation navigation. During the course of planning how we will do our testing. Currently our options are as follows:

  1. Test both navigations with the same group
  2. Test both navigations with a separate group for each

I was wondering if anyone had any advice on which has delivered a more optimal response. Option 1 has the possibility of the first test affecting the results of the second but I wanted to find out more opinions

1 Answer 1


One way to go is to combine those two options, just shuffle the order.
Randomly choose and assign each user a group and than go with design like this:

Group 1: A B   
Group 2: B A

This way you will minimize the impact of first design influencing the second and you will see reactions to both designs from all participants.

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