Miller, Wendy ReneeWeaver, MichaelBakoyannis, GiorgosBakas, TamilynBuelow, JaniceSabau, Dragos2017-09-282017-09-282017Miller, W. R., Weaver, M., Bakoyannis, G., Bakas, T., Buelow, J., & Sabau, D. (2017). Psychometric Testing of the Life Changes in Epilepsy Scale. Journal of Nursing Measurement, 25(1), 41–55. https://doi.org/10.1891/1061-3749.25.1.41https://hdl.handle.net/1805/14193Purpose: Three aims were addressed: (a) Evaluate properties of the items comprising the Life Changes in Epilepsy Scale-Pilot (LCES-P), (b) use item analysis to optimize the scale, (c) evaluate construct and criterion-related validity of the optimized LCES. Methods: The LCES-P was administered to 174 adults with epilepsy. Item analysis and exploratory factor analysis were performed. Internal consistency reliability, construct validity, and criterion-related validity were evaluated. Results: 17 items were retained in the optimized LCES. Internal consistency reliability was supported. Path analysis was used to evaluate construct validity. Criterion-related validity was supported by correlations with the Medical Outcomes SF-36 Survey (SF-36) General Health subscale and a criterion variable. Conclusions: The optimized version of the LCES can serve as a valuable outcome measure in clinical and research environments.enPublisher Policyepilepsyquality of lifepsychometricsArticle