Background: The practice and profession of evaluation continue to evolve. Over the years, evaluation scholars and practitioners have developed a broad—and still broadening—range of evaluation approaches. These evaluation approaches are often combined with various study designs in real-world evaluations. To provide an overview of these approaches and designs, and inspired by my son’s love of metro trains, I created an evaluation metro map.    Purpose: The purpose of this article is to describe the background, purpose, and benefits and limitations of the evaluation metro map. Setting: Not applicable. Intervention: Not applicable. Research Design: Not applicable. Data Collection and Analysis: Not applicable. Findings: Not applicable.

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