title: Revision and validation of the medication adherence self-efficacy scale (MASES) in hypertensive African Americans.
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.
authors.affiliation: New York University School of Medicine, VA New York Harbor 423 E. 23rd St., 15-167AN, New York, NY, 10010, USA. Senaida.Fernandez@nyumc.org
authors.forename: Senaida
authors.initials: S
authors.lastname: Fernandez
authors.forename: William
authors.initials: W
authors.lastname: Chaplin
authors.forename: Antoinette M
authors.initials: AM
authors.lastname: Schoenthaler
authors.forename: Gbenga
authors.initials: G
authors.lastname: Ogedegbe
mesh_terms: D000328:Adult; D001741:Black or African American / Q000523:psychology*; D000368:Aged; D000959:Antihypertensive Agents / Q000008:administration & dosage*; D001294:Attitude to Health / Q000208:ethnology; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy / Q000208:ethnology / Q000523:psychology*; D008297:Male; D055118:Medication Adherence / Q000208:ethnology* / Q000523:psychology; D008875:Middle Aged; D011594:Psychometrics; D015203:Reproducibility of Results; D020377:Self Efficacy; D012680:Sensitivity and Specificity
chemical_list: D000959:Antihypertensive Agents
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