When registering on our site, you are asked to enter your name, your email address, your sex and date of birth. 

It is compulsory to provide the first two for communication purposes, and the last two for access to online experiments. 

We may also ask for your phone number for one-time verification of your identity (to ensure that researchers are sending experiments to real people, and that there is no duplication possible). 

You are able to opt-out of this, although it may mean you won’t have access to all of the experiments on our website.