title: Psychometric Testing of the Life Changes in Epilepsy Scale.
abstract: 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.
  
  
  
  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.
  
  
  
  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.
  
  
  
  The optimized version of the LCES can serve as a valuable outcome measure in clinical and research environments.
authors.forename: Wendy R
authors.initials: WR
authors.lastname: Miller
authors.forename: Michael
authors.initials: M
authors.lastname: Weaver
authors.forename: Girogos
authors.initials: G
authors.lastname: Bakoyannis
authors.forename: Tamilyn
authors.initials: T
authors.lastname: Bakas
authors.forename: Janice
authors.initials: J
authors.lastname: Buelow
authors.forename: Dragos
authors.initials: D
authors.lastname: Sabau
mesh_terms: D004827:Epilepsy / Q000451:nursing / Q000523:psychology*; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008016:Life Change Events; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000592:standards*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards; D014481:United States