Accuracy of the last response for the specified element.
<block> <expt> <likert> <openended> <slidertrial> <trial>
A value of 1 indicates correct. A value of 0 indicates incorrect.
The following displays the value of correct in a text stimulus:
<text sometext>
/ items= ("correct = <% trial.sometrial.correct %>")
</text>
The following displays the value of correct in an instruction page:
<page somepage>
correct = <% trial.sometrial.correct %>
</page>