Research ArticleSpecial Communication

Quasi-Experimental Designs in Practice-based Research Settings: Design and Implementation Considerations

Margaret A. Handley, Dean Schillinger and Stephen Shiboski
The Journal of the American Board of Family Medicine September 2011, 24 (5) 589-596; DOI: https://doi.org/10.3122/jabfm.2011.05.110067

Article Figures & Data

Figures

  • Figure 1.
    Figure 1.

    Stepped-wedge design. Adapted from Brown and Lilford, 2006.

  • Figure 2.
    Figure 2.

    Comparison of treatment schedules for intervention within parallel time, cross-over, and stepped-wedge patterns. Reproduced from Contemporary Clinical Trials, Vol. 28, Michael A. Hussey and James P. Hughes, Design and Analysis of Stepped Wedge Cluster Randomized Trials, pp.182–191, 2007, with permission from Elsevier.

  • Figure 3.
    Figure 3.

    Stepped-wedge design integrating training component prior to intervention period.

  • Figure 4.
    Figure 4.

    Wait-list design application for SMART Steps diabetes intervention.

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