Tracking the effectiveness of CE over time beyond simply confirming its efficacy in continuing education (CE) in nursing is crucial. However, research evidence on the analysis of change of the effectiveness of CE over time is limited, particularly in the context of case management. This methodological study aimed to introduce both a growth curve modeling and an intra-individual variability index and demonstrate step-by-step procedures and interpretations of those analyses to assess case manager competency over time, using secondary data analysis. Data were collected from 22 case managers affiliated with the Korean National Health Insurance Corporation who attended three series of CE to improve their competency between May 2008 and August 2009. Unexpected results revealed a negative fixed effect of education level in the overall estimation of case managers' competency trajectory and a negative correlation between education level and case managers' intra-individual competency inconsistency over time.
J Contin Nurs Educ. 2017;48(5):230–238.
Ms. Park is Chief Executive Officer, Center for Econometric Optimization in the Nursing Workforce; Dr. Kang is Certified Motivational Interviewing Trainer and Researcher, The Research Institute of Nursing Science, and Dr. Yun is Emeritus Professor, Seoul National University College of Nursing, Seoul, Republic of Korea.
The authors have disclosed no potential conflicts of interest, financial or otherwise.
The authors thank Seung-Sik Hwang, MD, PhD, and Seung-Won Oh, MD, MBA, PhD, for their thoughtful statistical consultation, and Paulette E. Bane, MA, MFA, for her dedication to excellence in her scholarly editing. The authors also thank the Editor-in-Chief of The Journal of Continuing Education in Nursing, Dr. Patricia S. Yoder-Wise, and two anonymous reviewers for providing no less than three sets of keen and insightful review comments on earlier versions of the manuscript.
Address correspondence to Kyong-Hwa Kang, PhD, RN, Certified Motivational Interviewing Trainer and Researcher, The Research Institute of Nursing Science, Daehakro 103, Chongno-gu, Seoul National University College of Nursing, Seoul, 03080, Republic of Korea; e-mail:
Copyright 2017, SLACK Incorporated
Received: July 27, 2015
Accepted: October 26, 2016