Hi there. I have programmed a SC_IAT using the sample script for milisecond website. http://www.millisecond.com/download/samples/v3/IAT/SingleTargetIATPictureAndText.zip
I think a problem in that script is that certain blocks are not randomised over different experimental subjects...
The categorisation task
positive negative
or
animal
always shows up first. That's why I think it should be randomized, so that it also starts that way:
Unfortunately I dont know how to tell that to Inquisit.
Can somebody help?
Thanks a lot
As you can see here
<variables>/ group = (1 of 2) (block1=compatibletest1; block3=compatibletestinstructions; block4=compatibletest2; block5=incompatibletest1; block6=incompatibletestinstructions; block7=incompatibletest2)/ group = (2 of 2) (block1=incompatibletest1; block3=incompatibletestinstructions; block4=incompatibletest2; block5=compatibletest1; block6=compatibletestinstructions; block7=compatibletest2)</variables>
the order of pairings is *balanced* across subjects, i.e. odd-numbered subjects will start with positve+target, even-numbered subjects get the negative+target pairing first. That's the standard way for any IAT script, so there's no problem with the script (other than you probably entering the same subjectid on every run).
~Dave
"To understand recursion, you must first understand recursion." - Unknown Zen Master