A green chemistry experiment is presented for teaching an undergraduate quantitative analysis/analytical chemistry laboratory class through the use of black tea leaf extract for the determination of iron in supplement tablets. Dried tea leaf is a safe, low cost, and widely available source of natural extract that can be used in place of more toxic…

Institutional ethics review procedures aim -- in principle -- to minimise harm and evaluate risks, providing an important space to consider the safety of participants and researchers. However, literature has questioned the effectiveness of the process, particularly for reviewing 'risky' topics in a risk-averse environment. This article reports the…

The purpose of this mixed-methods research was to investigate changes in preservice elementary teachers' science teaching beliefs and explain how these beliefs influence the way these teachers interpret their science teaching and learning experiences. Supported by the theoretical underpinnings of teacher beliefs and drawings as a tool to…

This paper explores the experience of how Chinese international doctoral students develop critical thinking. Narrative interviews are conducted. Narrative thematic analysis is adopted. Four big themes are generated, which are understanding of critical thinking, comparison and contrasts, factors contributing to development of critical thinking and…

Six experiments investigated variables predicted to influence subjects' tendency to classify items by a single property ("rule-based" responding) instead of overall similarity, following the paradigm of Norenzayan et al. (2002, "Cognitive Science"), who found that European Americans tended to give more "logical"…

This article analyzes masculinity and experimental practices within three different physics communities. This work is premised on the understanding that the discipline of physics is not only dominated by men, but also is laden with masculine connotations on a symbolical level, and that this limited and limiting construction of physics has made it…

Three experiments investigated the role of source information (i.e., who said what) in readers' comprehension of short informational texts. Based on the Discrepancy-Induced Source Comprehension assumption (Braasch, Rouet, Vibert, & Britt, 2012), we hypothesized that readers would be more likely to make use of source information when…

Digital intercultural training tools play an important role in helping people to mediate cultural misunderstandings. In recent years, these tools were made to teach about specific cultures, but there has been little attention for the design of a tool to teach about differences across a wide range of cultures. In this work, we take the first steps…

The purpose of this study was to investigate differences between science lessons taught by Chinese astronauts in a space shuttle and those taught by American astronauts in a space shuttle, both of whom conducted experiments and demonstrations of science activities in a microgravity space environment. The study examined the instructional structure…

It is currently unknown how many Institutional Review Boards (IRBs) exist at community colleges. This study investigates the percentage of public and Tribal community colleges that have active IRBs. It also examines the potential relationships between states that allow community colleges to confer baccalaureate degrees, or that have articulation…

Understanding the effects of class size reduction (CSR) has been an enduring issue in education. For the past 3 decades, Project STAR has stimulated research and policy discussions regarding the effects of CSR on a variety of outcomes. Schanzenbach (2007) reviewed STAR studies and concluded that small classes improved student academic outcomes.…

We surveyed researchers in the health and exercise sciences to explore different areas and magnitudes of bias in researchers' decision making. Participants were presented with scenarios (testing a central hypothesis with p = 0.06 or p = 0.04) in a random order and surveyed about what they would do in each scenario. Participants showed significant…