Latin square designs and pseudo-randomization

[becky...@gmail.com]

Hi everyone!

I will be running a self-paced reading experiment soon (as part of my PhD coursework) and would really appreciate some advice on how to input a Latin square design to Ibex farm.

My experiment is a 2x3, so I have 6 conditions and 6 lists. I have a total of 24 critical items, so each participant will see 4 items in each condition. On top of this I have 40 fillers, so total 64 items (I will be running 30 participants, so 5 per list).

My items must be pseudo-randomized such that I have no more than 2 adjacent experimental items, and no 2 adjacent experimental items of the same condition.

I also need to keep track of which list which participants gets (they will not be tested remotely).

I'd be very grateful if somebody could help me w.r.t. how to set this up - I've run a small experiment on Ibex farm before, but had only 2 conditions so I'm really not sure what to do with the design that I'm working with now :-)

Many thanks in advance (and for those in Canada, Happy Thanksgiving!!)

Becky