I made a game where I want to check how players act depending on the type of used minimap (minimal vs. path to next task is drawn etc). I came across the Bartle taxonomy of player types for this purpose.
I was able to find the questions data thanks to this question: Bartle taxonomy formula
But I struggle now on how to run this test with people. In the data set are 39 questions. @Trevor Powell mentions in his answer that this means an uneven split between the types:
In the original question set (which is used verbatim in both of the links posted in the question), 'Socialiser' and 'Killer' are each available 20 times, while 'Achiever' and 'Explorer' are each only available 19 times. This biases test results slightly towards producing higher 'Socialiser' and 'Killer' values.
The online questionaires I find use only 30 questions like:
http://matthewbarr.co.uk/bartle/
http://matthewbarr.co.uk/bartle/index.php
I noticed that they have different questions on every run. Like it says on the Wikipedia page, they are randomly selected, and this matches what's on http://www.andreasen.org/bartle/ (you get redirected after 10 seconds).
If I want to get a player type for my participants, it seems odd to me that everyone gets different questions. My plan would be to select 30 questions and ask every participant the same questions.
What is the correct way to administer this survey and determine a player's Bartle type?