This collection contains doctoral papers and dissertations that have been previously un-disseminated, cataloged in university library/repository collections and/or that have appeared in the ProQuest database. These items have not gone through the Sigma Repository’s peer-review process, but have been accepted by the indicated university or college in partial fulfillment of the requirements for the specified degree.

The Sigma Repository has received express permission from the authors as copyright holders to post the items in this collection, or the authors have self-submitted. Copyright remains vested with the authors.

The views, research findings, and opinions expressed in these materials are not necessarily held or endorsed by the Honor Society of Nursing, Sigma Theta Tau International, or the Sigma Repository.


Neither the Honor Society of Nursing, Sigma Theta Tau International or the Sigma Repository guarantees, warrants, or endorses any research or other materials posted in the Henderson Repository, nor do they guarantee any claim made by the authors of such research or materials.

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