Randomized Controlled Trial of a Cohesive Eight-Week Evolution Unit That Incorporates Molecular Genetics and Principles of the Next Generation Science Standards

Findings from a randomized controlled study comparing a new, freely available Next Generation Science Standards (NGSS) high school evolution unit that integrates molecular genetics with teachers’ typical NGSS units are reported. Treatment students showed significantly higher evolution learning gains. Implications for secondary and postsecondary science educators are addressed.

A social-belonging intervention improves STEM outcomes for students who speak English as a second language

Students who speak English as a second language (ESL) are underserved and underrepresented in postsecondary science, technology, engineering, and math (STEM) fields. To date, most existing research with ESL students in higher education is qualitative. Drawing from this important body of work, we investigate the impact of a social-belonging intervention on anticipated changes in belonging, STEM GPA, and proportion of STEM credits obtained in students’ first semester and first year of college. Using data from more than 12,000 STEM-interested students at 19 universities, results revealed that the intervention increased ESL students’ anticipated sense of belonging and three of the four academic outcomes. Moreover, anticipated changes in belonging mediated the intervention’s effects on these academic outcomes. Robustness checks revealed that ESL effects persisted even when controlling for other identities correlated with ESL status. Overall, results suggest that anticipated belonging is an understudied barrier to creating a multilingual and diverse STEM workforce.

Supporting Autonomous Learning Skills in Developmental Mathematics Courses With Asynchronous Online Resources

Researchers have characterized the challenges many deaf and hard of hearing (DHH) students face in postsecondary science, technology, engineering, and mathematics (STEM) programs to three domains: preparation, socialization, and access. Additionally, some research has found that learners who are DHH have poor autonomous learning skills. The Deaf STEM Community Alliance, a project supported by the National Science Foundation (NSF HRD-1127955), created a model virtual (online) academic community called the DHH Virtual Academic Community to directly address preparation, socialization, and access challenges with the logic that online resources provide innovative and flexible means to adapt to complex student needs and schedules. This article describes a mixed-method study regarding one instructor’s effort to supplement developmental math education with online videos for students who are DHH, addressing issues relating to the challenges of preparation and access. Data analysis used both quantitative and qualitative methods to interpret student responses ( n = 89) about viewing behaviors and perceived benefits of the videos. Analysis of viewing behaviors also incorporated aggregated user analytics generated by YouTube. An unexpected finding of the study relates to the opportunity to develop autonomous learning skills by using the videos. While previous research with this student population has frequently found that students are teacher dependent, this study suggested that providing review videos allowed students to practice and master content on their own, strengthening their autonomous study skills.

High School Course Access and Postsecondary STEM Enrollment and Attainment

We study the effects of access to high school math and science courses on postsecondary science, technology, engineering, and mathematics (STEM) enrollment and degree attainment using administrative data from Missouri. Our data include more than 140,000 students from 14 cohorts entering the 4-year public university system. The effects of high school course access are identified by exploiting plausibly exogenous variation in course offerings within high schools over time. We find that differential access to high school courses does not affect postsecondary STEM enrollment or degree attainment. Our null results are estimated precisely enough to rule out moderate impacts.

Exploring Postsecondary Biology Educators’ Planning for Teaching to Advance Meaningful Education Improvement Initiatives

This paper attends to challenges for postsecondary science education improvement initiatives, notably understanding and responding to the realities guiding educators’ teaching practices. We explored 16 postsecondary biology educators’ instructional planning, providing novel insights into why educators select certain strategies over others, including lecturing. Our findings point to an array of factors that educators consider, factors that we believe push against the lecture versus active-learning dichotomy that we hear in some improvement rhetoric. We recommend professional development experiences (including peer evaluations of teaching) wherein educators and other proponents for teaching improvements explicitly explore rationales for teaching, including educators’ considerations of the nature of the discipline (content and concepts and skills and processes) and students’ needs. Educators with less experience with content were more likely to seek out additional instructional resources during planning, including other educators. Given this, teaching improvement proponents may want to offer professional development activities that sync with periodic and planned teaching assignments that take educators out of their disciplinary knowledge comfort zone. Disciplinary colleagues might serve as exemplars of planning and implementing teaching strategies that both convey foundational content and processes and engage students via evidence-based practices.

Broadening Participation by Including More Individuals With Disabilities in STEM: Promising Practices from an Engineering Research Center

This article describes successful practices for including individuals with disabilities (e.g., leaders, students, faculty researchers, advisory board members) in the Center for Sensorimotor Neural Engineering (CSNE), an Engineering Research Center funded by the National Science Foundation. The methods, tools, and materials presented in this article can be used by others seeking to increase the inclusion of individuals with disabilities in postsecondary science, technology, engineering, and mathematics (STEM) programs. Methods are employed to ensure that the CSNE is welcoming and accessible to individuals with a wide range of abilities and to recruit individuals with disabilities into significant roles that support the Center’s mission. These efforts have resulted in the engagement of individuals with disabilities in the Center’s operations, activities, and research at a higher rate when compared with all Engineering Research Centers.