\: Segment delimiter.
Example: Colorless green ideas\ sleep furiously.
Colorless green ideas ##### #########.
######### ##### ##### sleep furiously.
^: Line break (DMDX).
Example: Colorless^ green ideas^ sleep furiously.
Colorless
green ideas
sleep furiously.
$: Place it at the begining of an instruction item (DMDX).
Examples
$In the following task...
$BREAK
$The experiment has finished. Thank you!
?: Comprehension question. It will be shown after displaying the last segment of the previous item (DMDX).
Example:
Colorless green ideas sleep furiously.
?Do colorless green ideas sleep furiously?
Put + ('YES' response key) or - ('NO' response key) after ? to indicate the correct response key for the comprehension question. That is, if you put ?+ before the comprehension question, the participant should press the 'YES' response key. Instead, if you put ?- before the comprehension question, the participant should press the 'NO' response key. Remember that you can assign the 'YES' and 'NO' response keys in the right panel below.
Examples:
Colorless green ideas sleep furiously.
?+Do colorless green ideas sleep furiously? ('YES' response)
Colorless green ideas play furiously.
?-Do colorless green ideas sleep furiously? ('NO' response)