Fix error when loading the LikertScale
Fix error when loading the LikertScale

On the report form we were getting the following error (coming from the LikertScale):
Error: <rect> attribute height: A negative value is not valid. ("-11").

NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet