Content validity was achieved because a panel of experts
composed of; experienced professional nurses, human
resource managers, academics in nursing and a statistician,judged whether the instrument reflects the known content
area. After proposing some changes, there was consensus
amongst these experts that the instrument was valid for the
study (Brink, Van der Walt & Van Rensburg 2006:160; De
Vos, Strydom, Fouche & Delport 2005:161). The instrument
was field tested prior to the use of the final document, after
which the document was refined and some questions were
rephrased.