Hello!
I am trying to run a ST-SB-IAT and I want one block to run each trial once (8 trials) and each trial has 6 items. I want each trial and each item run once, so I've used the noreplace command (?) in both the picture element and in the block element.
Block structure:
<block measureSC>
/trials= [1-48=noreplacenorepeat(targAhi, targAlo, targBhi, targBlo, SCattrAhi, SCattrAlo, SCattrAhi, SCattrAlo)]
/bgstim= (label_targA,label_targB, label_SCattrAhi, label_SCattrAlo, divider)
/preinstructions= (measureSC)
/responsemode = correct
/onblockend = [values.SCd = expressions.d]
</block>
Picture element structure:
<picture SCattrAhi> /items = SCattrA /select = noreplacenorepeat /resetinterval = 0 /position = (50, values.posHI) /size = (20%, 20%) </picture>
<picture SCattrAlo> /items = SCattrA /select = noreplacenorepeat /resetinterval = 0 /position = (50, values.posLO) /size = (20%, 20%) </picture>
<picture targAhi> /items = targA /select = noreplacenorepeat /resetinterval = 0 /position = (50, values.posHI) /size = (20%, 20%) </picture>
<picture targAlo> /items = targA /select = noreplacenorepeat /resetinterval = 0 /position = (50, values.posLO) /size = (20%, 20%) </picture>
<picture targBhi> /items = targB /select = noreplacenorepeat /resetinterval = 0 /position = (50, values.posHI) /size = (20%, 20%) </picture>
<picture targBlo> /items = targB /select = noreplacenorepeat /resetinterval = 0 /position = (50, values.posLO) /size = (20%, 20%) </picture>
I know that the SCattr trials are in there twice - that's supposed to be like that. I want every picture in the items list to be presented like this: SCattrAhi x2; SCattrAlo x2, targAhi x1; targAlo x1; targBhi x1; targBlo x1.
What am I doing wrong? I've scavenged through the threads on this forum that mention these topics but none of the fixes have helped me so far.