The width of the likert scale.
<likert>
The value can be specified in percentages, pixels, or points.
The following displays the width of the anchors of a likert scale:
<text sometext>
/ items= ("correct = <% trial.somelikert.scalewidth %>")
</text>
The following displays width of the anchors of a likert scale:
<page somepage>
correct = <% trial.somelikert.scalewidth %>
</page>