Randomising block order

[Jess_Burchell]

Hi

I currently have an experiment which has 4 blocks of trials. What I want to do is make it so that each new run of the experiment results in a random order of the blocks? I have read lots about this online and I am still struggling. Any help would be appreciated.

I have the trial information either in 4 separate spreadsheets or 1 large one.

Thanks
Jess

[Yiannis]

perhaps you may want to have a look at this post

Presenting taks using latin square

Hi, I cannot make out which task is which so I created 5 loops assuming that there are 5 tasks (I know I am wrong but adjust accordingly) and an outer loop that encloses everything and hopefully will randomise your tasks. I haven’t tested it myself but perhaps you can give it a try to see if it works. The ITIs and the breaks may be a bit tricky so you may need to consider including them inside some loops. Attached. experiment1.psyexp (77.1 KB) myrandom.xlsx (8.1 KB)

[Jess_Burchell]

Thanks for you help!