This study is a meta-analysis of the effects of out-of-school time (after school, summer camps, enrichment programs, etc.) on the student interest in STEM. This study was guided by the following research questions: (1) How effective is OST as a means to foster student interest in STEM? (2) How does the effectiveness of OST differ by program and study characteristics? A total of 19 independents effect sizes were extracted from 15 studies investigating the effect of out-of-school time (OST) on STEM interest. Included studies were representative of K-12 settings in the United States from 2009-2015. Specifically studies were included if they directly assessed the effects of OST on STEM interest, and provided sufficient data to calculate an effect size. The status of publication was not a constraint on this investigation, thus grey literature was included along with journal articles to provide a more representative sample of studies. The results suggest that out-of-school time has a positive effect on student interest in STEM. Furthermore, the variation in these effects is moderated by program focus, grade level, and the quality of the research design. The effects of out-of-school time on STEM interest are synthesized, and implications for teaching and practice are provided.

The purpose of this study was to explore the differential effects of access to gifted education on the mathematics and science achievement of fourth-grade Black girls. This study utilized mean difference effect sizes to examine the magnitude of differences between groups. By convention, White girls were included as a comparison group. Girls receiving gifted instruction and girls not receiving gifted instruction were the populations of interest (N = 13,868). The mathematics results suggest that Black girls participating in gifted education statistically significantly outperform Black girls in the comparison group. The mean difference effect sizes for within-group differences were almost twice as large for Black girls compared with White girls. The science results indicate that Black girls receiving gifted instruction outperformed Black girls in the comparison group. White girls, regardless of access to gifted instruction, statistically significantly outperformed Black girls in science. These results inform the recommendations provided.

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