The California wellness foundation's Health Improvement Initiative: evaluation findings and lessons learned.

Purpose: To evaluate the effect of the Health Improvement Initiative (HII), a 5-year grantmaking initiative funded by The California Wellness Foundation designed to identify the critical factors needed to bring about population health improvements through community-level systems change.

Design: The evaluation of the HII used a case-study, logic-model approach to make inferences about the effect of each community coalition (Health Partnership) on its target community. The primary outcome measure was the creation of significant and sustainable community-level systems change.

Evaluating the California Wellness Foundation's Health Improvement Initiative: a logic model approach.

The difficulties of conducting randomized trials to evaluate community-based initiatives have led some researchers to argue in favor of a case study "logic model" approach to evaluation. This article describes a case study logic approach adopted for the evaluation of one community initiative, the Health Improvement Initiative (HII) funded by the California Wellness Foundation (TCWF). The HII is a comprehensive, community-based initiative designed to improve population health by implementing and sustaining community-level systems changes.