Create XML file for question specification
create_qti_task(object, dir = NULL, verification = FALSE)
xml document.
an instance of the S4 object (SingleChoice, MultipleChoice, Essay, Entry, Ordering, OneInRowTable, OneInColTable, MultipleChoiceTable, DirectedPair).
string, optional; a folder to store xml file; working directory by default
boolean, optional; to check validity of xml file, default
FALSE