title: Medication literacy in Spanish and English: psychometric evaluation of a new assessment tool.
abstract: OBJECTIVE
  To evaluate the psychometric properties of a newly developed Medication Literacy Assessment in Spanish and English (MedLitR xSE).
  
  
  METHODS
  Descriptive, nonexperimental, cross-sectional study.
  
  
  METHODS
  El Paso, TX, from December 2006 to June 2009.
  
  
  METHODS
  181 English- or Spanish speaking adults.
  
  
  METHODS
  Survey administered in two phases.
  
  
  METHODS
  Descriptive statistics, internal consistency, confirmatory factor analysis (CFA) and fit indices, and criterion-related validity.
  
  
  RESULTS
  The 20-item MedLitR xSE tool showed adequate internal consistency and reliability, and CFA revealed overall good model fit. In phase 2, the shorter 14-item MedLitR xSE showed good total test reliability and correlated well with the Short Test of Functional Health Literacy in Adults. Item response theory analyses showed no language bias and a one-dimensional (i.e., one factor) model of medication literacy.
  
  
  CONCLUSIONS
  The initial and latest shorter version of the MedLitR xSE tool demonstrated good psychometric properties. This tool may provide a new option to assess "medication literacy" in English and Spanish.
authors.affiliation: Department of Psychology, University of Texas at El Paso, 79902, USA. jasauceda@miners.utep.edu
authors.forename: John A
authors.initials: JA
authors.lastname: Sauceda
authors.forename: Amanda M
authors.initials: AM
authors.lastname: Loya
authors.forename: Jeri J
authors.initials: JJ
authors.lastname: Sias
authors.forename: Thomas
authors.initials: T
authors.lastname: Taylor
authors.forename: John S
authors.initials: JS
authors.lastname: Wiebe
authors.forename: José O
authors.initials: JO
authors.lastname: Rivera
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006630:Hispanic or Latino / Q000523:psychology*; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D008960:Models, Psychological; D063046:Patient Medication Knowledge; D011594:Psychometrics; D015203:Reproducibility of Results; D044465:White People / Q000523:psychology*