Informal learning (IL) venues such as museums, zoos, scouting, national parks, and community activities are increasingly recognized for their important role in enhancing the public understanding of science. Many benefits to students who participate in rich informal learning experiences are reported in the literature, including improvements in…

Measurement errors attributable to cultural issues are complex and challenging for educational assessments. We need assessment tests sensitive to the cultural heterogeneity of populations, and psychometric methods appropriate to address fairness and equity concerns. Built on the research of culturally responsive assessment, this dissertation…

In courses with a heterogeneous student population, instructors are often challenged to balance successful course completion with rigor. This difficult task can be confounded in foundational, gateway courses, such as introductory biology, which serves a mix of freshman majors at various levels of preparedness. Research suggests that changes in…

Bandura's influential theory has been used to argue that teachers with high self-efficacy will be more effective at increasing pupil achievement--and a voluminous empirical literature has repeatedly documented associations consistent with this claim. However, few studies have considered whether these correlations reflect an underlying causal…

We examine whether and how teachers' major fields in college affect students' achievement, exploiting within-student variation across subfields in natural science (i.e. physics, chemistry, biology, and Earth science). Using middle-school students' data from the TIMSS and controlling for student-teacher fixed effects, we find that teachers improve…

I conducted a set of four studies to catalogue and examine course elements, including active learning strategies and evidence-based teaching practices, and their influence on student experiences and performance in college biology classes. In the first study, I defined the term "active learning" and catalogued the 300[plus] strategies…

This article is concerned with the level of reasoning needed to complete state examinations in mathematics and science at lower secondary level in Ireland. The authors used Lithner's (2008) Creative Reasoning Framework to classify tasks in three years of mathematics examination papers. They adapted this framework to do the same for science. It was…

The study aimed to develop and validate an assessment framework of multidimensional scientific competencies for seventh-grade students in the northeastern region of Thailand. A total of 289 samples with three different scientific competency levels were randomly selected to participate as test-takers. The design-based research encompassing four…

As targeted, single-conception curriculum research becomes more prevalent in physics education research (PER), the need for a more sophisticated statistical understanding of the conceptual surveys used becomes apparent. Previously, the factor structure of the Force Concept Inventory (FCI) was examined using exploratory factor analysis (EFA) and…

Mechanisms are central in scientific explanations. However, developing mechanistic explanations is difficult for students especially in domains in which mechanisms involve abstract components and functions, such as genetics. One of the core components of genetic mechanisms are proteins and their functions. Students struggle to reason about the…

The paper examined gender difference in the Scholastic Achievement Test (SAT) among senior secondary school adolescents using the physical science of physics in three (3) separate papers. The paper attempted to ascertain whether gender difference accounts for the score differential observed in the Scholastic Achievement Test (SAT). The study…

Introductory physics is taught to several hundred thousand university students every year. It is seen as especially difficult by many and the failure rate is often high. A relevant question is whether one can increase the success rate among the weaker students? Retrieval practice is an established learning strategy with large benefits. However, as…

There has been growing evidence that flipped teaching (FT) can increase student engagement. Traditional lecture-based teaching (TT) method was compared with FT and FT combined with retrieval practice (FTR) in a 400-level Exercise Physiology course over eight semesters. In the FT format, lecture content was assigned for students to prepare before…

This brief examines Trends in International Mathematics and Science Study (TIMSS) science achievement of the 20% highest and the 20% lowest performing fourth and eighth graders in 11 countries. To do so, the authors compare achievement distributions across countries, using measures of relative equality within countries. Such an examination…

The purpose of this report is to provide a synthesis of the research on K-12 testing accommodations. In this report, we summarize the research published in 2017. Previous reports by NCEO have covered research published since 1999. During 2017, 14 research studies were published on the topic of testing accommodations in the elementary and secondary…