Health Psychology Open (Nov 2017)

Psychometric properties of the Beliefs about Medicine Questionnaire–adjuvant endocrine therapy (BMQ-AET) for women taking AETs following early-stage breast cancer

  • Jo Brett,
  • Nick J Hulbert-Williams,
  • Deborah Fenlon,
  • Mary Boulton,
  • Fiona M Walter,
  • Peter Donnelly,
  • Bernadette Lavery,
  • Adrienne Morgan,
  • Carolyn Morris,
  • Rob Horne,
  • Eila Watson

DOI
https://doi.org/10.1177/2055102917740469
Journal volume & issue
Vol. 4

Abstract

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This study evaluated the Beliefs about Medicine Questionnaire to explore adherence to adjuvant endocrine therapy after treatment for breast cancer (BMQ-AET). Factor structure of the BMQ-AET was explored alongside internal consistency, convergent validity and acceptability. The BMQ-AET Specific Scale fitted the original 10 item model. Internal consistency of the BMQ-AET was much improved compared to the original BMQ and convergent validity showed predicted direction of correlation, although correlation with BMQ-AET concerns scale was low. Acceptability was good. The evaluation of the BMQ-AET is encouraging, and could facilitate future research around adherence to AET.