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Group: Administrators
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Visits: 105K
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You usually don't have to define /validresponse for checkboxes at all (i.e., you can simply remove the /validresponse attribute). Since <checkboxex> allow for multiple simultaneous answers (i.e., you can check one option, two, or all three), you would only be able to move on with all three checked here when /validresponse is defined.
Assuming you want to restrict responses such that a participant has to select one option -- and only one -- you do that via the /range attribute:
<survey survey>
/ pages = [1 = p1]
</survey>
<surveypage p1>
/ questions = [1 = q1]
</surveypage>
<checkboxes q1>
/ caption = "Check one option (and one only):"
/ options = ("Answer 1", "Answer 2", "Answer 3")
/ optionvalues = ("1", "2", "3")
/ range = (1,1)
</checkboxes>
Hope this helps.
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