title: Development of a measure of self-efficacy for acute headache medication adherence.
abstract: Acute medication adherence is essential to manage chronic, episodic disorders, including headache. This paper describes the development of a measure of acute medication self-efficacy for headache (AMSE-H). Phase 1: 14 AMSE-H items were generated through qualitative interviews with 21 patients and 15 clinical headache experts. Phase 2: Researchers selected 7 AMSE-H items by examining item performance in 35 headache patients. Phase 3: Migraine patients (n = 161) completed the AMSE-H, and measures of outcome expectancies, perceived access to medication, headache management self-efficacy (n = 58) and a 1-week AMSE-H re-test (n = 103). Content validity was established through input of multiple stakeholder groups during item generation. PCA identified two components: cross-episode self-efficacy (eigenvalue = 3.4) and Episode-Specific Self-Efficacy (eigenvalue = 1.0). These subscales are internally consistent (.73-.80), have low 1-week test-retest reliability (rs = .52-.66), and demonstrated solid construct and discriminant validity. The AMSE-H is brief, theory-driven, focused, socially valid measure acceptable to both patients and providers.
authors.affiliation: Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, USA. Elizabeth.Seng@einstein.yu.edu.|Saul R. Korey Department of Neurology, Albert Einstein College of Medicine of Yeshiva University, Bronx, NY, USA. Elizabeth.Seng@einstein.yu.edu.
authors.forename: Elizabeth K
authors.initials: EK
authors.lastname: Seng
authors.affiliation: Mercy Research, Chesterfield, MO, USA.|Mercy Clinic Headache Center, St. Louis, MO, USA.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Nicholson
authors.affiliation: Ohio University, Athens, OH, USA.
authors.forename: Kenneth A
authors.initials: KA
authors.lastname: Holroyd
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006261:Headache / Q000523:psychology*; D006801:Humans; D008297:Male; D055118:Medication Adherence / Q000523:psychology*; D008881:Migraine Disorders / Q000523:psychology*; D025341:Principal Component Analysis; D011594:Psychometrics; D015203:Reproducibility of Results; D020377:Self Efficacy; D011795:Surveys and Questionnaires
keywords: Acute medication; Adherence; Headache; Migraine; Outcome expectancy; Self-efficacy