Hello,



I want to present two statements on the screen which belong together, i.e. any time a statement from stimulus list A is shown, the respective statement from stimulus list B should appear as well. I could already solve this issue with help of the /select = ....currentindex function and defining separate stim/stimB lists (each containing 24 statements).
I am now struggling the the randomization of the statement sequence: I want to counterbalance whether statement A is presented first and followed by the respective statement B, or whether statement B is presented first and followed by the respective statement A. I thought of using a counter, however, it seems that there are still some double trials because sometimes, the statement is drawn directly from the list, and sometimes only indirectly via the corresponding list.

How can I solve this problem and "exclude" also those statements which were only drawn via the /select function?

Any advice would be great!

Thank you in advance and kind regards,
L.

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<text high_highlow_updown>
/items = high_status
/select = mycounter
/resetinterval = 0
/position = (30,12.5)
/fontstyle = ("Arial", 20pt)
</text>

<text low_highlow_updown>
/items = low_status
/select = text.high_highlow_updown.currentindex
/position = (30,65)
/fontstyle = ("Arial", 20pt)
</text>

<text low_lowhigh_updown>
/items = low_status
/select = mycounter
/resetinterval = 0
/position = (30,12.5)
/fontstyle = ("Arial", 20pt)
</text>

<text high_lowhigh_updown>
/items = high_status
/select = text.low_lowhigh_updown.currentindex
/resetinterval = 0
/position = (70,65)
/fontstyle = ("Arial", 20pt)
</text>

<counter mycounter>
/ select = noreplace(1-24)
/ selectionrate = always
/ resetinterval = 0
</counter>