Essentials of Nursing Research

  • Acquisitions Editor: Christina C. Burns  Product Director: Jennifer K. Forestieri  Development Editor: Meredith L. Brittain  Production Product Manager: Marian Bellus  Design Coordinator: Joan Wendt  Illustration Coordinator: Jennifer Clements  Manufacturing Coordinator: Karin Duf ield  Prepress Vendor: Absolute Service, Inc.  9th edition  Copyright 2018 © Wolters Kluwer  Fifth Edition © 2011 by LIPPINCOTT WILLIAMS & WILKINS, a WOLTERS KLUWER business  Fourth Edition © 2006 by LIPPINCOTT WILLIAMS & WILKINS Third Edition © 2001 by LIPPINCOTT WILLIAMS & WILKINS  All rights reserved. This book is protected by copyright. No part of this book may be reproduced or transmitted in any form or by any means, including as photocopies or scanned-in or other electronic copies, or utilized by any information storage and retrieval system without written permission from the copyright owner, except for brief quotations embodied in critical articles and reviews. Materials appearing in this book prepared by individuals as part of their official duties as U.S. government employees are not covered by the above-mentioned copyright. To request permission, please contact Wolters Kluwer at Two Commerce Square, 2001 Market Street, Philadelphia, PA 19103, via email at, or via our website at (products and services).  9 8 7 6 5 4 3 2 1