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From walkability to active living potential: an "ecometric" validation study.

Lise Gauvin1, Lucie Richard, Cora Lynn Craig

  • 1Groupe de recherche interdisciplinaire en santé (Interdisciplinary Research Group on Health), University of Montreal, Montreal, Quebec, Canada. lise.gauvin.2@umontreal.ca

American Journal of Preventive Medicine
|February 8, 2005
PubMed
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This study validates a neighborhood active living potential measure using ecometrics. The tool reliably captures differences in neighborhood activity-friendliness, safety, and destination density.

Area of Science:

  • Environmental psychology
  • Urban planning
  • Public health

Background:

  • Assessing neighborhood environments is crucial for promoting active living.
  • Existing measures may lack reliability and validity for neighborhood-level analysis.
  • Ecometrics offers a framework for developing robust environmental measures.

Purpose of the Study:

  • To establish the reliability and validity of a neighborhood-level measure of active living potential.
  • To apply ecometric principles for rigorous measurement development.
  • To assess the between-neighborhood variability captured by the measure.

Main Methods:

  • Eight observers were trained and used an 18-item grid to rate 112 neighborhoods.
  • Observations were nested within observers and neighborhoods, creating a hierarchical dataset.

Related Experiment Videos

  • Canadian census data was linked to neighborhood observations for convergent validity analysis.

    • Main Results:

    • Ecometric multilevel modeling indicated that approximately one-third of observation variability was at the between-neighborhood level.
    • Reliability estimates were strong: 0.78 for activity-friendliness, 0.76 for safety, and 0.83 for destination density.
    • Environmental safety correlated positively with neighborhood affluence, while destination density correlated negatively with affluence.

    Conclusions:

    • The neighborhood active living potential measure demonstrates good reliability and convergent validity.
    • The measure effectively captures significant differences between neighborhoods.
    • Ecometrics methodology was essential for accurately assessing the measurement characteristics.