Hello Everyone
Sorry for bothering. I have just one further question: to minimise order effects, the blocks are counterbalanced (according to the subject ID). Additionally i would like to program that in the reversed target discrimination practice block (Block 6) are twice as many trials as in the first target discrminitaion paractice block (Block 1). How can i do that?
<variables>
/ group = (1 of 2) (block1=targetcompatiblepractice; block3=compatibletest1; block4=compatibletestinstructions; block5=compatibletest2; block6=targetincompatiblepractice; block7=incompatibletest1; block8=incompatibletestinstructions; block9=incompatibletest2)
/ group = (2 of 2) (block1=targetincompatiblepractice; block3=incompatibletest1; block4=incompatibletestinstructions; block5=incompatibletest2; block6=targetcompatiblepractice; block7=compatibletest1; block8=compatibletestinstructions; block9=compatibletest2)
</variables>
Thanks for your help!
Beste Regards
Sabi
Look at the respective <block> elements' /trials attribute. You might have to create two new <blocks> in the script and adjust the rest accordingly. This is easy to do, and you should be able to pull this off after working through the tutorials and the original script to understand how it works.