Revision and validation of the medication adherence self-efficacy scale (MASES) in hypertensive African Americans

Senaida Fernandez, William Chaplin, Antoinette M. Schoenthaler, Gbenga Ogedegbe

Research output: Contribution to journalArticle

Abstract

Study purpose was to revise and examine the validity of the Medication Adherence Self-Efficacy Scale (MASES) in an independent sample of 168 hypertensive African Americans: mean age 54 years (SD = 12.36); 86% female; 76% high school education or greater. Participants provided demographic information; completed the MASES, self-report and electronic measures of medication adherence at baseline and three months. Confirmatory (CFA), exploratory (EFA) factor analyses, and classical test theory (CTT) analyses suggested that MASES is unidimensional and internally reliable. Item response theory (IRT) analyses led to a revised 13-item version of the scale: MASES-R. EFA, CTT, and IRT results provide a foundation of support for MASES-R reliability and validity for African Americans with hypertension. Research examining MASES-R psychometric properties in other ethnic groups will improve generalizability of findings and utility of the scale across groups. The MASES-R is brief, quick to administer, and can capture useful data on adherence self-efficacy.

Original languageEnglish (US)
Pages (from-to)453-462
Number of pages10
JournalJournal of Behavioral Medicine
Volume31
Issue number6
DOIs
StatePublished - Dec 2008

Keywords

  • African Americans
  • Hypertension
  • Medication adherence
  • Scale validation
  • Self-efficacy

ASJC Scopus subject areas

  • Psychology(all)
  • Psychiatry and Mental health

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