Validity testing of the long-term medication behavior self-efficacy scale

Kris Denhaerynck, Ivo L Abraham, Greta Gourley, Gerda Drent, Peter De Vleeschouwer, Doreen Papajcik, Elaine Lince, Sabina De Geest

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Self-efficacy is an important determinant of health behavior that can be targeted for intervention. Little effort has been given to the development of valid measures for self-efficacy with medication taking for adherence research. The purpose of this study was to determine the criterion validity of the Long-Term Medication Behavior Self-Efficacy Scale (LTMBSES). Individual patient data from 6 existing adherence studies in transplant, hyperlipidemia, and AIDS/HIV patients (n = 1021) were pooled. Validity was determined by assessing the relation between the LTMBSES score and medication adherence - both self-reported and electronically monitored. A weak relationship was found between the LTMBSES score and adherence, which can possibly be attributed to a ceiling effect, caused by a too homogeneous population and/or a failure of the scale to challenge patients. Generalized Estimating Equations revealed that the total average self-efficacy score predicted reported medication adherence (p < .0001). The Receiver Operating Characteristic curve revealed the area under the curve was 0.67, indicating a significant (p < .0001), but poor predictive capability. Evidence for criterion validity of the Long-Term Medication Behavior Self-Efficacy Scale is not yet convincing. Future research should focus on: (1) validation in a population with a more heterogenous level of adherence, and (2) making the scale more challenging by referring to "always taking the medication without exception.".

Original languageEnglish (US)
Pages (from-to)267-282
Number of pages16
JournalJournal of Nursing Measurement
Volume11
Issue number3
DOIs
StatePublished - Dec 2003
Externally publishedYes

Fingerprint

Self Efficacy
Medication Adherence
Health Behavior
Hyperlipidemias
ROC Curve
Population
Area Under Curve
Acquired Immunodeficiency Syndrome
HIV
Transplants
Research

Keywords

  • Patient compliance
  • Psychometrics
  • Self-efficacy

ASJC Scopus subject areas

  • Nursing(all)

Cite this

Denhaerynck, K., Abraham, I. L., Gourley, G., Drent, G., De Vleeschouwer, P., Papajcik, D., ... De Geest, S. (2003). Validity testing of the long-term medication behavior self-efficacy scale. Journal of Nursing Measurement, 11(3), 267-282. https://doi.org/10.1891/jnum.11.3.267.61271

Validity testing of the long-term medication behavior self-efficacy scale. / Denhaerynck, Kris; Abraham, Ivo L; Gourley, Greta; Drent, Gerda; De Vleeschouwer, Peter; Papajcik, Doreen; Lince, Elaine; De Geest, Sabina.

In: Journal of Nursing Measurement, Vol. 11, No. 3, 12.2003, p. 267-282.

Research output: Contribution to journalArticle

Denhaerynck, K, Abraham, IL, Gourley, G, Drent, G, De Vleeschouwer, P, Papajcik, D, Lince, E & De Geest, S 2003, 'Validity testing of the long-term medication behavior self-efficacy scale', Journal of Nursing Measurement, vol. 11, no. 3, pp. 267-282. https://doi.org/10.1891/jnum.11.3.267.61271
Denhaerynck, Kris ; Abraham, Ivo L ; Gourley, Greta ; Drent, Gerda ; De Vleeschouwer, Peter ; Papajcik, Doreen ; Lince, Elaine ; De Geest, Sabina. / Validity testing of the long-term medication behavior self-efficacy scale. In: Journal of Nursing Measurement. 2003 ; Vol. 11, No. 3. pp. 267-282.
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