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Although gender gaps associated with K-12 science achievement have narrowed significantly, gaps in science engagement and efficacy in childhood likely explain why women remain underrepresented in science careers. Early intervention programs may address root causes of gender gaps in science careers. Outdoor science education (OSE) is one understudied but promising strategy, that provides ample opportunity for reform-based instructional practices that may benefit girls, including girls of colour. Using a pre-post, treatment-control quasi-experimental design, we evaluated how an OSE program differentially impacted the science grades, science knowledge, and science self-efficacy of fifth grade girls versus boys (n = 640). We found the OSE treatment increased knowledge and maintained science grades for girls while grades fell for girls in the control group. We also found that science self-efficacy decreased for both boys and girls in the treatment group. We did not detect direct or interaction effects of race on science outcomes. Research suggests OSE may help students associate science learning with challenge, which may help explain the decrease in self-efficacy coupled with the increase in achievement for girls. We suggest future research continue to investigate how OSE can benefit all students, including those who may become disengaged with learning in traditional classroom settings.

Connection to nature (CTN) can help promote environmental engagement requisite for addressing extreme environmental challenges. Current generations, however, may be less connected to nature than previous ones. Spending time in nature can counter this disconnect, particularly among children. In relation to CTN, this study evaluates the relative predictive power of solitary and social time in nature, specific recreation activities (e.g., camping), and diverse backgrounds (e.g., ethnicity) through a classification tree analysis with 9-to-12-year olds in the southeastern USA (n = 1,285). Solitary time in nature was the most important predictor of high CTN, and social time in nature was a secondary component of high CTN. In addition, in the context of this study, hunting and fishing were the most important activities predicting high CTN. Based on these results, we suggest providing solitary outdoor activities reinforced by environmental socialization to promote CTN for all.

Environmental education (EE) practitioners struggle to consistently and rigorously evaluate their programs, particularly when little time is available for evaluation. Since environmental literacy (EL) is the goal of environmental education, a very short EL instrument -- amenable to use when longer tests are not practical for practitioners -- would address an important EE need. We describe the development and validation of the Environmental Literacy Instrument for Adolescents (ELI-A) that is short enough for use in field applications (i.e. 5-15 min) and measures four domains of environmental literacy (ecological knowledge, hope, cognitive skills, behaviour). Factor analysis, item response theory, and concurrent validity tests were used in the validation process. Structural equation modelling supported the fit between the ELI-A and prevailing EL frameworks. The results support a valid and reliable instrument that is short enough for practical use but comprehensive in measuring four primary components of EL. This instrument could help fulfil the call to evaluate EE programming in both formal and informal settings.