OBJECTIVE: To evaluate the psychometric properties of a newly developed Medication Literacy Assessment in Spanish and English (MedLitR xSE). DESIGN: Descriptive, nonexperimental, cross-sectional study. SETTING: El Paso, TX, from December 2006 to June 2009. PARTICIPANTS: 181 English- or Spanish speaking adults. INTERVENTION: Survey administered in two phases. MAIN OUTCOME MEASURES: 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. CONCLUSION: 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.
OBJECTIVE: To evaluate the psychometric properties of a newly developed Medication Literacy Assessment in Spanish and English (MedLitR xSE). DESIGN: Descriptive, nonexperimental, cross-sectional study. SETTING: El Paso, TX, from December 2006 to June 2009. PARTICIPANTS: 181 English- or Spanish speaking adults. INTERVENTION: Survey administered in two phases. MAIN OUTCOME MEASURES: 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. CONCLUSION: 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: Tam H Nguyen; Hyunjeong Park; Hae-Ra Han; Kitty S Chan; Michael K Paasche-Orlow; Jolie Haun; Miyong T Kim Journal: Patient Educ Couns Date: 2015-07-29