Adds the stimulus to the frame of a trial corresponding to the specified time.
<likert>
<trial>
Name | Type | Description |
---|---|---|
value | stimulus | The new stimulus. |
time | integer | The time in milliseconds. |
The following dynamically adds an error feedback stimulus to the trial if performance dips below 50%:
<trial sometrial>
/ ontrialend= [if (trial.sometrial.percentcorrect <= 50) trial.test.insertstimulustime(text.errorfeedback, 0); ]
</trial>