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Related Experiment Videos

Acupuncture expectancy scale: development and preliminary validation in China.

Jun J Mao1, Katrina Armstrong, John T Farrar

  • 1Department of Family Medicine and Community Health, University of Pennsylvania School of Medicine, Philadelphia, PA, USA. maoj@uphs.upenn.edu

Explore (New York, N.Y.)
|August 8, 2007
PubMed
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A new four-item Acupuncture Expectancy Scale was developed and validated to measure patient expectations for acupuncture therapy. This reliable and valid instrument can help evaluate expectancy

Area of Science:

  • Integrative and Complementary Medicine
  • Psychology
  • Clinical Research Methodology

Background:

  • Expectancy significantly influences patient responses to various interventions.
  • A validated measure for acupuncture expectancy is lacking, hindering quantitative evaluation of its clinical impact.
  • Understanding patient expectations is crucial for optimizing acupuncture therapy outcomes.

Purpose of the Study:

  • To develop and validate a reliable and accurate instrument for measuring patient expectancy in acupuncture therapy.
  • To create a quantitative tool to assess the role of expectancy in acupuncture's clinical effectiveness.
  • To provide a standardized measure for use in clinical trials and research.

Main Methods:

  • Developed the Acupuncture Expectancy Scale through patient-reported items.

Related Experiment Videos

  • Conducted a two-phase survey study with 200 participants across six outpatient acupuncture clinics in Beijing, China.
  • Assessed scale reliability using Cronbach's alpha and validity through correlation with perceived efficacy, satisfaction, and confidence.

    • Main Results:

    • The final four-item scale measures expectations of illness improvement, coping enhancement, vitality increase, and symptom alleviation.
    • The scale demonstrated good internal consistency (Cronbach's alpha = .82) and captured a general component of expectancy (64% variance).
    • Acupuncture expectancy scores positively correlated with perceived efficacy (0.44), satisfaction (0.49), and confidence (0.51) (P < .001).

    Conclusions:

    • A simple, valid, and reliable four-item Acupuncture Expectancy Scale was successfully developed.
    • The scale effectively measures patient expectations and correlates with self-reported outcomes of acupuncture therapy.
    • Further testing in diverse populations and integration into clinical trials are recommended to explore expectancy's role in acupuncture therapy.