Mathematics Anxiety in Young Children: An Exploratory Study     

Rachel R. Harari  Rose K. Vukovic  Sean P. Bailey 《Journal of Experimental Education》2013,81(4):538-555

This study explored the nature of mathematics anxiety in a sample of 106 ethnically and linguistically diverse first-grade students. Although much is known about mathematics anxiety in older children and adults, little is known about when mathematics anxiety first emerges or its characteristics in young children. Results from exploratory factor analysis indicated that mathematics anxiety in first grade is a multidimensional construct encompassing negative reactions, numerical confidence, and worry. Negative reactions were related specifically to foundational mathematical concepts whereas numerical confidence was related specifically to computation skill; worry was not related to any outcome. Levels of mathematics anxiety did not differ by sex or language background. Overall, negative reactions and numerical confidence were found to be the most salient dimensions of mathematics anxiety in this sample.  相似文献   

Investing in Affection: An Investigation of Affection Exchange Theory and Relational Qualities   总被引：2，自引：2，他引：0  

Sean M. Horan  Melanie Booth-Butterfield 《Communication quarterly》2013,61(4):394-413

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Understanding the Routine Expression of Deceptive Affection in Romantic Relationships     

Sean M. Horan  Melanie Booth-Butterfield 《Communication quarterly》2013,61(2):195-216

Studies suggest that individuals regularly communicate inauthentic affectionate messages to their romantic partners. Yet, most studies do not describe this process, what constitutes deceptive affection, or the functions involved. The study involved a 7-day diary in which participants recorded what they lied about, why they lied, and how they used affection to deceive their romantic partners. Results indicate that participants lied about their own feelings, feelings about their partners, or feelings about the situation. They communicated deceptive affection using verbal messages of confirmation or avoidance, and incorporated nonverbal cues of haptics, proxemics, and kinesics. Motives for the deception included face-saving, conflict management/avoidance, and emotion management. This study provides a clearer picture of how deceptive communication may support and maintain romantic relationships.  相似文献   

An Ethical Exercise for the Social Studies Classroom: The Trolley Dilemma     

Sean M. Lennon  Jeffrey M. Byford  J. T. Cox 《Clearing house (Menasha, Wis.)》2013,86(6):178-181

The Trolley Problem as defined in this paper is a series, or continuation, of increasingly difficult ethical riddles successfully implemented in a classroom environment to spur complex, critical thinking and dialogue. The activity is designed upon the scenario of a runaway train with different and challenging choices, segueing neatly into group discussions of ethics while limiting potential disruptions or controversies. It fits nicely with multiple standards, goals and/or outcomes and can be accommodated to multiple grade levels and courses. It is a powerful, yet easily implemented classroom exercise for educators to develop higher order thinking and dialogue for their students.  相似文献   

Stereotypes of Aging: Their Effects on the Health of Seniors in North American Society     

Sean Horton  J. Baker  J. M. Deakin 《Educational gerontology》2013,39(12):1021-1035

Seniors are routinely subjected to negative stereotypes regarding their physical and cognitive abilities. The power and prevalence of cultural stereotypes of aging essentially results in a “double-whammy” to seniors. First, they influence the way that seniors are treated by society. Second, cultural stereotypes affect how seniors see themselves. The ramifications here are important, for research suggests that stereotypes influence decisions to engage in cognitive and physical activity, the ability to recover from disease and, ultimately, the length and quality of life. Considering the demographic trends in North America, finding ways to effectively minimize and counteract the most negative stereotypes remains a pressing social concern.  相似文献   

University teaching: an introductory guide     

Sean Sturm 《高等教育研究与发展》2013,32(6):1054-1055

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Evaluation of adverse drug reaction formatting in drug information mobile phone applications     

Sean M. McConachie  Dena Berri  Jewel Konja  Christopher A. Giuliano 《Journal of the Medical Library Association》2022,110(1):81

Objective:To evaluate the differences in presentation (formatting) of adverse drug reaction (ADR) information within drug monographs in commonly used drug information (DI) mobile device applications.Methods:A cross-sectional analysis of ADR formatting of twenty commonly prescribed oral medications within seven DI mobile applications was performed. Databases were assessed for ADR information, including presence of placebo comparisons, severity of ADR, onset of ADR, formatting of ADRs in percentile (quantitative) format or qualitative format, whether references were used to cite information, and whether ADRs are grouped by organ system. Data was collected by two study investigators and discrepancies were resolved via consensus.Results:The seven DI mobile applications varied significantly on every analyzed ADR variable with the exception of ADR onset, which was absent in all databases. Significant differences were found for variables known to impact clinical judgment such as placebo comparisons and qualitative versus quantitative formatting. Placebo comparisons were most common among monographs in Lexicomp (30%) but were absent among monographs within other applications. Quantitative information was commonly used in most databases but was absent in Epocrates. Qualitative formatting was present in all Epocrates and Micromedex applications but absent in the majority of other applications. Substantial variations were also found in severity and grouping information.Conclusion:Substantial variation in ADR formatting exists among the most common DI mobile applications. These differences may translate into alternative interpretations of medical information and thus impact clinical judgment. Health care librarians and clinicians should consider ADR formatting when choosing between DI applications.  相似文献   

Understanding the track and field sprint start through a functional analysis of the external force features which contribute to higher levels of block phase performance     

Neil Edward Bezodis  Sean Peter Walton  Ryu Nagahara 《Journal of sports sciences》2019,37(5):560-567

This study aimed to identify the continuous ground reaction force (GRF) features which contribute to higher levels of block phase performance. Twenty-three sprint-trained athletes completed starts from their preferred settings during which GRFs were recorded separately under each block. Continuous features of the magnitude and direction of the resultant GRF signals which explained 90% of the variation between the sprinters were identified. Each sprinter’s coefficient score for these continuous features was then input to a linear regression model to predict block phase performance (normalised external power). Four significant (p < 0.05) predictor features associated with GRF magnitude were identified; there were none associated with GRF direction. A feature associated with greater rear block GRF magnitudes from the onset of the push was the most important predictor (β = 1.185), followed by greater front block GRF magnitudes for the final three-quarters of the push (β = 0.791). Features which included a later rear block exit (β = 0.254) and greater front leg GRF magnitudes during the mid-push phase (β = 0.224) were also significant predictors. Sprint practitioners are encouraged, where possible, to consider the continuous magnitude of the GRFs produced throughout the block phase in addition to selected discrete values.  相似文献   

Acute effects of different warm-up protocols on highly skilled golfers’ drive performance     

Ben L. Langdown  Jack E.T. Wells  Sean Graham  Matt W. Bridge 《Journal of sports sciences》2019,37(6):656-664

Previous research has highlighted the positive effect that different warm-up protocols have on golf performance (e.g. Sorbie et al., 2016; Tilley & Macfarlane, 2012) with the design of warm-ups and programmes targeting and improving golf performance through the activation and development of specific muscle groups. This study aimed to examine the acute effects of two warm-up protocols on golf drive performance in comparison to a control condition. Using a randomised counterbalanced design over three testing sessions, twenty-three highly skilled golfers completed the control, dynamic and resistance-band warm-up conditions. Following each condition, a GC2 launch monitor was used to record ball velocity and other launch parameters of ten shots hit with the participants’ own driver. A repeated-measures ANOVA found significant increases in ball velocity (η_p² = .217) between the control and both the dynamic and resistance-band warm-up conditions but no difference between these latter two, and a reduction in launch angle between control and dynamic conditions. The use of either a dynamic stretching or resistance-band warm-up can have acute benefits on ball velocity but golfers should liaise with a PGA Professional golf coach to effectively integrate this into their golf driving performance.  相似文献   

A moral basis for prohibiting performance enhancing drug use in competitive sport     

Sean McKeever 《体育哲学杂志》2017,44(2):243-257

A strong moral reason for prohibiting doping in sport is to be found in the bad choices that would be faced by clean athletes in a sporting world that tolerated doping. The case against doping is not, however, to be grounded in the concept of coercion. Instead, it is grounded in a general duty of sport to afford fair opportunity to the goods that are distinctively within sport's sphere of control. The moral reason to prohibit doping need not be balanced against any autonomy claim of athletes who would prefer to dope because, upon closer examination, such claims have no force. The moral reason to prohibit doping does, however, need to be balanced against the enforcement costs imposed on all athletes by effective prohibition.  相似文献