How to randomize the blocks between participants

noob768

Hi,

For a search task I am doing, I have two blocks, an easy one and a difficult one.

Inside each of these blocks, there is a practice block and an experiment block

I need to randomize the presentation of easy and difficult experiment blocks between participants. Initially, I used parity (odd and even) for it, but then only one block was displayed to each participant. How can I randomize the blocks?

Thank you

Fab

Hi @noob768,

You can find a simple solution to this problem in the forum: https://forum.cogsci.nl/discussion/8562/counterbalancing-blocks-for-participants

Hiope this helps,

Fabrice.