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Informal learning organizations such as museums, zoos, aquaria, gardens, and community-based organizations are often positioned as having programming that fill a void that may exist in the lives of youth participants. Often these institutions do not recognize the assets that youth gain from their own homes and communities and bring to bear in these programs and that contribute to their success and persistence in STEM and academics. In this paper, we problematize the prevailing deficit-oriented approach to STEM enrichment programs for youth who are underrepresented in STEM. Drawing from Tara Yosso’s theory of community cultural wealth, we describe the STEM identity and trajectories of three individuals as they navigated a long-term, museum-based, informal science learning program. Using Yosso’s framework, we describe the capital that youth brought into the program and the ways that they leveraged this capital as they moved from middle to high school, and into their postsecondary studies and early careers in the sciences. Furthermore, we describe how their existing capital intertwined with capital they gained from the museum program in ways that fostered persistence and achievement in science. 

Informal learning institutions, such as museums, science centers, and community-based organizations, play a critical role in providing opportunities for students to engage in science, technology, engineering, and mathematics (STEM) activities during out-of-school time hours. In recent years, thousands of studies, evaluations, and conference proceedings have been published measuring the impact that these programs have had on their participants. However, because studies of informal science education (ISE) programs vary considerably in how they are designed and in the quality of their designs, it is often quite difficult to assess their impact on participants. Knowing whether the outcomes reported by these studies are supported with sufficient evidence is important not only for maximizing participant impact, but also because there are considerable economic and human resources invested to support informal learning initiatives. To address this problem, I used the theories of impact analysis and triangulation as a framework for developing user-friendly rubrics for assessing quality of research designs and evidence of impact. I used two main sources, research-based recommendations from STEM governing bodies and feedback from a focus group, to identify criteria indicative of high-quality STEM research and study design. Accordingly, I developed three STEM Research Design Rubrics, one for quantitative studies, one for qualitative studies, and another for mixed methods studies, that can be used by ISE researchers, practitioners, and evaluators to assess research design quality. Likewise, I developed three STEM Impact Rubrics, one for quantitative studies, one for qualitative studies, and another for mixed methods studies, that can be used by ISE researchers, practitioners, and evaluators to assess evidence of outcomes. The rubrics developed in this study are practical tools that can be used by ISE researchers, practitioners, and evaluators to improve the field of informal science learning by increasing the quality of study design and for discerning whether studies or program evaluations are providing sufficient evidence of impact.