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Related Experiment Video

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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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Objectively coding intervention fidelity during a phone-based obesity prevention study.

Meghan M JaKa1, Elisabeth M Seburg2, Alison M Roeder3

  • 1Health Partners Institute for Education & Research, 8170 33 Ave S, Mpls, MN 55440.

Journal of Obesity and Overweight
|December 1, 2015
PubMed
Summary
This summary is machine-generated.

Developing objective measures for intervention fidelity is crucial for improving childhood obesity prevention programs. This study assessed fidelity in a parent-focused phone intervention, finding high agreement on content delivery but discrepancies in goal-setting quality assessments.

Keywords:
Intervention fidelityaudio codingbehavior changeprocess evaluation

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Area of Science:

  • Public Health
  • Behavioral Science
  • Childhood Obesity Research

Background:

  • Childhood obesity prevention efforts have shown limited success.
  • Intervention fidelity is critical for understanding intervention effectiveness but is often underreported.
  • A phone-based intervention targeting parents of preschoolers was implemented.

Purpose of the Study:

  • To develop and apply a coding protocol for objectively assessing intervention fidelity.
  • To evaluate intervention fidelity in a phone-based childhood obesity prevention program.
  • To examine agreement between interventionists and independent coders on fidelity measures.

Main Methods:

  • A coding protocol was developed to assess intervention fidelity.
  • Interventionists and independent coders rated session fidelity, including time on target areas and goal-setting quality.
  • Participant engagement was rated by coders.

Main Results:

  • High agreement was observed between interventionists and coders regarding time spent on specific topics.
  • Interventionists rated their goal-setting quality higher than independent coders.
  • Initial coder ratings of session quality were high, with slight declines in some components over time.

Conclusions:

  • Objective measurement of intervention fidelity is essential for strengthening obesity interventions.
  • Analyzing changes in fidelity over time may help predict study outcomes.
  • Improved understanding of intervention fidelity can enhance the success of future obesity prevention strategies.