The backLabel attribute determines the text appearing on the back button on a survey or instruction page.
<instruct> <survey> <surveyPage>
| Name | Type | Description | 
|---|---|---|
| label | string | A string serving as text for the button. | 
The default value is "Back".
The following sets the back button label to "Previous Page":
<survey someSurvey>
/ backLabel = ("Previous Page")
</survey>