Looks like you are searching for 1 tkt on 1st window and 4 people on 2nd. Trying making those variables the same. Also, close 1st window, clear cookies, wait 5 min as it is possible (not likely) that the 1st query is temporarily decrementing available inventory.
For any valid study, you should eliminate as many extraneous variables that may corrupt the data in unknown ways.
Last edited by fastair; Dec 13, 2013 at 6:19 am