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Related Experiment Video

Updated: Feb 21, 2026

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Evaluating a community-based public health intervention using a complex systems approach.

Anna Matheson1, Mat Walton1, Rebecca Gray1

  • 1School of Public Health, Massey University, Wallace Street, Mt Cook, Wellington, New Zealand.

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|October 5, 2017
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Summary
This summary is machine-generated.

This study evaluates the complex Healthy Families NZ public health intervention using a comparative case method. It applies novel evaluation theories to understand chronic disease prevention in Aotearoa/New Zealand.

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Area of Science:

  • Public Health
  • Evaluation Science
  • Complex Systems Theory

Background:

  • Community-based public health interventions, such as Healthy Families NZ, are complex.
  • The social systems in which these interventions are implemented are also inherently complex.
  • Evaluating complex interventions requires sophisticated approaches that acknowledge system dynamics.

Purpose of the Study:

  • To outline methods for evaluating complex community-based public health interventions.
  • To apply developing evaluation theories to a real-world case example.
  • To address the challenges posed by complexity in public health program evaluation.

Main Methods:

  • Utilized the comparative case method to analyze emergent outcomes as 'configurations of causes'.
  • Developed 'thick', mixed-data case studies, viewing each as a complex system.
  • Employed Qualitative Comparative Analysis (QCA) for systematic, longitudinal case comparison.

Main Results:

  • The evaluation framework operationalized and tested novel methods for complex intervention assessment.
  • Demonstrated the applicability of advanced evaluation theories within public health.
  • Provided insights into the factors influencing chronic disease prevention system strengthening.

Conclusions:

  • The described approach effectively evaluates complex community-based public health initiatives.
  • Highlights the importance of considering social system complexity in intervention evaluation.
  • Extends the application of evaluation methodologies from other fields into public health practice.