A textbook designed for theory and research courses in master's and doctoral programs. As described in the 2nd edition of the "Encyclopedia of Nursing Research", middle range theory "is a basic, usable structure of ideas, less abstract than grand theory and more abstract than empirical generalizations or micro-range theory. In this revised and updated second edition, the authors will revise the eight theories that were examined in the first edition with published research and practice updates along with any changes in the basic concepts and models.This book features seven new theories: Symptom Management, Caring, Embodied Language, Cultural Self-reliance, Caregiver Stress, Clinical Decision Making, and Moral Reckoning.