This study investigates the impact of an informal science outreach programme built around theories of identity formation and self-efficacy on middle school girls' science affinities. A lottery-based, randomised control trial was used to identify programme effects on four science affinity outcomes: science interests, efficacy with science, science…

This study presents an exemplar for psychometric evaluation and modification of established measures when applied to new populations. Specifically, we describe the use of two subscales (Career Decision-Making Self-Efficacy Scale and Math/Science Self-Efficacy Scale) from the Middle School Self-Efficacy Scale (MSSES) as outcome measures in an…

U.S. national data show that American Indians earn lower math and science scores than other ethnic/racial groups. In the current study, a brief, self-affirmation intervention was aimed at increasing science motivational beliefs in American Indian middle school students (n = 212, M[subscript age] = 12.7 years). Students, each read a biography of a…

Emerging evidence attests to the need to intervene in young students' science motivation and achievement before their science motivation starts to dwindle. Heeding this call, we implemented a science utility value intervention for fifth and sixth graders in 23 classrooms (N = 550). Through five intervention sessions that consisted of diverse…

This dissertation conducted a science classroom intervention using two instructional approaches, computational modeling and paper-based pictorial modeling, in the context of food webs. A series of research papers were written on the impact of the intervention on students' attitudes and learning, and on teachers via professional development and…

The "leaky pipeline" with regard to students' engagement in Science, Technology, Engineering, and Mathematics (STEM) has triggered extensive research to understand and prevent students dropping out from STEM. To boost enrolment and interest in STEM fields, integrated STEM (iSTEM) education could be harnessed by providing students with…

My dissertation is a pre-mid-post-test, quantitative research design, including surveys and written assessments, to answer these research questions: 1. How do students' science mindset vary over time when engaged in science inquiry activities? Is there a difference between male and female students? 2. Is there a relationship between 7th grade…

Intuitive knowledge seems to influence human decision-making outside of consciousness and differs from deliberate cognitive and metacognitive processes. Intuitive knowledge can play an essential role in problem solving and may offer the initiation of subsequent learning processes. Scientific discovery learning with computer simulations leads to…

Purpose: The authors tested the efficacy of a team-based instructional leadership intervention designed to increase middle school mathematics and science teachers' use of educational technologies for multiple representations of content to foster students' conceptual understandings. Each school's leadership team comprised an administrator, a…

Findings from recent studies suggest that students' pathways into mathematics-related careers begin as early as middle school when students are forming lasting self-perceptions of their academic abilities. Middle school is also a time when students begin making choices about future coursework in math, science, and technology that will have…

This article reports the results of a randomized control trial of a semester-long intervention designed to promote ninth-grade science students' use of text-based investigation to create explanatory models of biological phenomena. The main research question was whether the student participants in the intervention outperformed the students in the…

Although many agree that writing can make a unique contribution to learning, harnessing that contribution is difficult, particularly in the middle grades. The purpose of this study was to measure the efficacy of a feasible writing-to-learn intervention in Grade 6-11 science classes. We focused on middle school students because this group has been…

As climate change becomes an increasingly important topic for science educators, it is critical to learn how teachers may be able to increase students' knowledge about it. We conducted two consecutive quasi-experimental studies that investigated the role of interest in predicting middle school students' knowledge gains from a unit about how…

We know little about why school administrators choose to adopt preventive mental health interventions within the context of school-based prevention trials. This study used a qualitative multiple-case study design to identify factors that influenced the adoption of a trauma-informed universal intervention by urban public school administrators…

This study's first purpose was to investigate effects of a fourth- and fifth-grade "next-generation" fraction intervention, which included six enhancements over a previously validated fraction intervention, designed to address career- and college-readiness standards. The study's second purpose was to assess effects of the next-generation…