The influence of red on perceptions of relative dominance and threat in a competitive context

Recent research has revealed that a person or team wearing red is more likely to win a physical contest than a person or team wearing another color. In the present research, we examined whether red influences perceptions of relative dominance and threat in an imagined same-sex competitive context, and did so attending to the distinction between wearing red oneself and viewing red on an opponent. Results revealed a bidirectional effect: wearing red enhanced perceptions of one's relative dominance and threat, and viewing an opponent in red enhanced perceptions of the opponent's relative dominance and threat. These effects were observed across sex, and participants seemed unaware of the influence of red on their responses. Our findings lead to practical suggestions regarding the use of colored attire in sport contexts, and add to an emerging, provocative literature indicating that red has a subtle but important influence on psychological functioning.     

Equivalence of Free-Response and Multiple-Choice Items

This study examined the relationship of multiple-choice and free-response items contained on the College Board's Advanced Placement Computer Science (APCS) examination. Confirmatory factor analysis was used to test the fit of a two-factor model where each item format marked its own factor. Results showed a single-factor solution to provide the most parsimonious fit in each of two random-half samples. This finding might be accounted for by several mechanisms, including overlap in the specific processes assessed by the multiple-choice and free-response items and the limited opportunity for skill differentiation afforded by the year-long APCS course.     

Evaluating an Automatically Scorable, Open-Ended Response Type for Measuring Mathematical Reasoning in Computer-Adaptive Tests

The first generation of computer-based tests depends largely on multiple-choice items and constructed-response questions that can be scored through literal matches with a key. This study evaluated scoring accuracy and item functioning for an open-ended response type where correct answers, posed as mathematical expressions, can take many different surface forms. Items were administered to 1,864 participants in field trials of a new admissions test for quantitatively oriented graduate programs. Results showed automatic scoring to approximate the accuracy of multiple-choice scanning, with all processing errors stemming from examinees improperly entering responses. In addition, the items functioned similarly in difficulty, item-total relations, and male-female performance differences to other response types being considered for the measure.     

Hidden treasure: successful international doctoral students who found and harnessed the hidden curriculum

This paper draws from an institutionally-funded phenomenological study of international PhD students’ academic acculturation, which focuses on the distinctive strengths, challenges, and hidden opportunities facing this cohort within the context of their transition from one academic culture to another. The first section introduces the theoretical base employed in the study and is then followed by exploring the conceptualisations of the hidden curriculum and its associated concepts: ‘the third space’ and ‘darkness in higher education’. Drawing upon our study findings, the second section illustrates practical exemplars of finding and harnessing the hidden curriculum. Without discounting the wide range of formal and informal institutional support provisions designed to facilitate international PhD students’ acculturation to a new academic setting, our study findings strongly endorse that students themselves have a crucial role to play in their complex transitional journey. Our study also offers a unique insight, i.e. if found, the hidden curriculum is an effective tool not only for international PhD students’ coping and survival but even more importantly, in thriving in new societal and academic contexts.     

Children's Social Reasoning in Context: Reply to Gabennesch

Children's social reasoning is multifaceted. Moral judgments of justice, welfare, and rights are an important aspect of domains of social reasoning that are not merely the arbitrary and relative products of social formations. In defining all social formations as conventions that are either reified or accurately perceived as arbitrary and relative human inventions, Gabennesch relegates the moral concepts of many philosophers, moral leaders, and laypersons to ethnocentrism and reification. In the process, he fails to distinguish between metaethics relating to the source of knowledge and the form of knowledge. He also fails to account for distinctions between conventionality and moral concepts that do not constitute realism or reification. His review of the evidence of moral realism in children is selective in that isolated findings are taken out of the context of a particular study and of the entire body of evidence. Moreover, he has incorrectly interpreted many of the findings he cites in support of childhood realism. We present a summary of 48 studies demonstrating that children distinguish morality and convention. Gabennesch's perceptual metaphors hinge on an exaggerated role for conventionality in social formations at the expense of other complex social phenomena.     

Learning of Core Disciplinary Ideas: Efficacy Comparison of Two Contrasting Modes of Science Instruction

Science curricula and teaching methods vary greatly, depending in part on which facets of science are emphasized, e.g., core disciplinary ideas or science practices and process skills, and perspectives differ considerably on desirable pedagogies. Given the multi-faceted nature of science and the variety of teaching methods found in practice, it is no simple task to determine what teaching approaches might be most effective and for what purposes. Research into relative efficacy faces considerable challenges, with confounding factors, ambiguities, conflations, and lack of controls being threats to validity. We provide a conceptual framework characterizing the many teaching strategies found in practice as being variants of two fundamental contrasting epistemic modes, and we disentangle conflations of terms and confusions of constructs in both teaching practice and research. Instructional units for two science topics were developed in parallel in the alternative epistemic modes, differing in concept learning paths but otherwise equivalent. We conducted a randomized controlled study of the comparative efficacy of the two modes for learning core disciplinary ideas, using operationally defined active-direct and guided-inquiry teaching methods. Five middle school teachers taught each unit in both modes over 4 years of classroom trials in an 8-day summer program for eighth grade students. Student understanding of core ideas was assessed using pre- and post-tests, and learning gains were analyzed by mode, teacher, topic, and trial year. Although routes to concept understanding were very different in the two modes, eventual student learning gains were similar, within statistical variation. Efficacy variations between and within teachers were greater than between modes, indicating the importance of teacher effects on student achievement. Findings suggest that teachers need not be bound to one mode throughout and can flexibly decide on the pedagogical approach for each concept and situation, on several grounds other than efficacy of core content acquisition alone.     

Biomechanical Effects of Fatigue on 10,000 Meter Running Technique

Abstract

A study of the effect of fatigue on the mechanical characteristics of running during a 10,000 meter race was undertaken using high speed cinematography and a computer analysis technique. Eight highly skilled male subjects were filmed at four intervals throughout the event. An analysis of variance for trends was conducted for each of the dependent variables indicating the adjustments made by the runners that accompanied fatigue over the four stages of the event. Runners countered fatigue by changing sections of their total gait pattern (stride length, stride rate, segmental body positions) and reducing running velocity. Toward the end of the race the runners became less competent in the positioning of the foot and leg at foot-strike, which increased the potential for a retarding effect. A more extended lower limb increased the energy requirements of the recovery phase during the latter stages of the race. Fatigue caused these highly skilled runners to systematically alter their technique throughout the race. These adjustments, however, were not excessive.     

Challenges and promises of overcoming epistemological and methodological partiality: Advancing engineering education through acceptance of diverse ways of knowing

The purpose of this paper is to explore some challenges and promises when the epistemological diversity embedded in qualitative research traditions is introduced to research communities with one dominant research paradigm, such as engineering education. Literature is used from other fields and empirical data are used from engineering education, including the practices of the European Journal of Engineering Education and the Journal of Engineering Education, with the expectation that the ideas that are presented are relevant to a broad range of education disciplines. A number of challenges are identified as the epistemological diversity of qualitative research is introduced to the primarily positivist field of engineering education. Ultimately, embracing epistemological diversity holds the promise of researchers being able to ask: ‘What questions and answers become possible from these newly created positions and what can be learned from these alternative approaches?’.