The mean response latency for the monkey's responses.
<monkey>
None.
The following displays the value of meanlatency in a text stimulus:
<text sometext>
/ items= ("meanlatency = <% monkey.meanlatency %>")
</text>
The following displays the value of meanlatency in an instruction page:
<page somepage>
meanlatency = <% monkey.meanlatency %>
</page>