The Impact of Teacher Study Groups in Vocabulary on Teaching Practice,Teacher Knowledge,and Student Vocabulary Knowledge: A Large-Scale Replication Study

The purpose of this replication study was to examine the impact of the Teacher Study Group (TSG) professional development in vocabulary on first-grade teachers' knowledge of vocabulary instruction and observed teaching practice, and on students' vocabulary knowledge. Sixty-two schools from 16 districts in four states were randomly assigned to treatment and control conditions. A total of 182 first-grade teachers and their 1,811 students formed the sample. Treatment teachers received the TSG professional development from October to March. Teachers in the business-as-usual control condition received school/district professional development. A multilevel analysis was conducted to detect impacts. Significant impacts were found for teacher knowledge and observed teaching practice. No impacts were found at the student level.     

Alcohol's Getting a Bit More Social: When Alcohol Marketing Messages on Facebook Increase Young Adults’ Intentions to Imbibe

This study investigates the effects of social media marketing of alcoholic beverages using a 2 (likes: low vs. high) × 2 (shares: low vs. high) × 3 (display ad type: alcohol ad vs. antibinge drinking PSA vs. local bank) × 6 (status update repetitions) experimental design. The study examines how evaluations of alcohol marketing status updates and display advertisements predict social media users’ intentions to consume alcohol, as a function of message virality and display ad type. Participants’ viral behavioral intentions (intentions to like, share, and comment on) for status updates were strongest in predicting intentions to consume alcohol, and this relationship was strongest when the Facebook status update had high likes and shares. The article argues that alcohol marketing on social media reflects a social norm of alcohol consumption, which leads users to consume more alcoholic drinks. Findings are discussed within the framework of persuasion theories and policy changes regarding regulation of alcohol marketing on social media.     

Now you’re playing with audience power: the work of watching games

As electronic sports (e-sports)—the configuration of competitive videogaming as spectator sport—surges in popularity, industry organizations such as Major League Gaming (MLG) continue to experiment with techniques for capturing, and capitalizing on, the work of watching play. This article critically considers these techniques of “audiencing” by comparing observations of two MLG tournaments, in 2008 and 2012, situating them within broader cultural, technological, and economic transformations in the competitive gaming landscape. Even as games continue to be lauded as “participatory” media, this account shows a shift within some e-sports contexts towards rebuilding, rather than blurring, the boundaries between content producers and audiences.     

Developing and Applying a Protocol for a Systematic Review in the Social Sciences

The article reports on a systematic method of undertaking a literature search on the educational impact of being a young carer (16–24 years old). The search methodology applied and described in detail will be of value to academic librarians and to other education researchers who undertake systematic literature searches. Seven bibliographic databases and Google Scholar were searched between November 2015 and January 2016. Two and three concept search structures were compared, involving 28 search terms plus truncation variants. One hundred and eighty-one relevant articles were retrieved. Sensitivity, precision, and “unique articles retrieved” were used as metrics. Social Care Online and Google Scholar had the greatest sensitivity. As well as meticulous use of AND, OR, and bracket operators, the use of NEAR and NOT operators to increase precision were tested and are recommended as useful tools for conducting systematic searches.     

Food terrorism and food defense on the Web

Global food supplies are at risk of both accidental and deliberate contamination. As past incidents have demonstrated, food terrorism may cause social, economic, and political disruption. The United States increased its efforts to protect its food after 9/11 by broadening the roles of existing agencies, including the U.S. Department of Agriculture and the Food and Drug Administration, and by making coordination of food defense the responsibility of the Department of Homeland Security. However, weaknesses in the system remain. This article presents background information and Web sites useful for consumers, industry representatives, students, researchers, policy makers, and the librarians that serve them.     

Effects of turf and cleat footwear on plantar load distributions in adolescent American football players during resisted pushing

Metatarsal and midfoot injuries are common in American football. Footwear design may influence injury rates by altering plantar foot loading patterns in these regions. The purpose of this study was to determine the effect of cleat design on in-shoe plantar foot loading during a football-specific, resisted pushing task. Twenty competitive football players (age 14.7 ± 1.8 years, height 1.72 ± 0.10 m, and mass 71.8 ± 26.9 kg) completed three trials of pushing a weighted sled at maximal effort in a standard shoe (CLEAT) and artificial turf-specific shoe (TURF), with flexible in-shoe force measuring insoles. Repeated measures ANOVAs identified mean differences in maximum force and relative load under all regions of the foot. Results showed higher forces in the CLEAT under the medial (p < 0.001) and lateral (p = 0.004) midfoot, central (p = 0.007) and lateral (p < 0.001) forefoot, and lesser toes (p = 0.01), but lower forces in the hallux (p = 0.02) compared to the TURF shoe. Additionally, relative loading was higher in the CLEAT under the medial (p < 0.001) and lateral (p = 0.002) midfoot and lateral (p < 0.001) forefoot, but lower in the medial forefoot (p = 0.006) and hallux (p < 0.001) compared to the TURF shoe. The two shoes elicited distinct plantar loading profiles and may influence shoe selection decisions during injury prevention or rehabilitation practices.     

Three-dimensional kinematic differences between the preferred and non-preferred limbs during maximal instep soccer kicking

Abstract

The current investigation aimed to determine whether there are differences in ball velocity and 3D kinematics when performing maximal kicks with the dominant and non-dominant limbs. Seventeen male academy soccer players performed maximal speed place kicks with their dominant and the non-dominant limbs. The 3D kinematics of the lower extremities were obtained using a 10-camera motion capture system operating at 500 Hz. Hip, knee and ankle joint kinematics were quantified in the sagittal, coronal and transverse planes and then contrasted using paired t-tests. Significantly higher ball velocities were obtained with the dominant limb. Foot linear velocity and knee extension velocity at ball contact were also found to be significantly greater in the dominant limb. That reduced ball velocities were observed between kicking limbs highlights the potential performance detriments that may occur when kicking with the non-dominant limb; thus, it is recommended that additional bilateral training be undertaken in order to attenuate this and improve overall kicking performance.     

Running performance in the heat is improved by similar magnitude with pre-exercise cold-water immersion and mid-exercise facial water spray

This investigation compared the effects of external pre-cooling and mid-exercise cooling methods on running time trial performance and associated physiological responses. Nine trained male runners completed familiarisation and three randomised 5 km running time trials on a non-motorised treadmill in the heat (33°C). The trials included pre-cooling by cold-water immersion (CWI), mid-exercise cooling by intermittent facial water spray (SPRAY), and a control of no cooling (CON). Temperature, cardiorespiratory, muscular activation, and perceptual responses were measured as well as blood concentrations of lactate and prolactin. Performance time was significantly faster with CWI (24.5 ± 2.8 min; P = 0.01) and SPRAY (24.6 ± 3.3 min; P = 0.01) compared to CON (25.2 ± 3.2 min). Both cooling strategies significantly (P < 0.05) reduced forehead temperatures and thermal sensation, and increased muscle activation. Only pre-cooling significantly lowered rectal temperature both pre-exercise (by 0.5 ± 0.3°C; P < 0.01) and throughout exercise, and reduced sweat rate (P < 0.05). Both cooling strategies improved performance by a similar magnitude, and are ergogenic for athletes. The observed physiological changes suggest some involvement of central and psychophysiological mechanisms of performance improvement.     

Stressors,coping, and coping effectiveness: Gender,type of sport,and skill differences

Abstract

The aim of this study was to examine stressors, coping, and coping effectiveness as a function of gender, type of sport, and skill. The sample consisted of 749 undergraduate athletes (455 males, 294 females) aged 18 – 38 years (mean = 19.8 years). Skill was classified as international/national, county, university, and club standard. Participants completed a stressor and coping concept map (Novak & Gowin, 1984 Novak, J. D. and Gowin, D. B. 1984. Learning how to learn, Cambridge: Cambridge University Press. [Crossref] , [Google Scholar]). The results revealed gender, type of sport, and skill differences in relation to stressor frequencies, coping strategy deployment, and coping effectiveness. In contrast to previous research, females used a variety of problem-focused (e.g. planning, communication, technique-orientated coping) strategies more frequently than males. Team sport athletes reported a variety of sport-specific stressors relating to the demands of playing in a team environment. The group of national/international athletes reported using more planning, blocking, and visualization, and also reported that their coping was more effective than that of less-skilled athletes.     

We read,we write: reconsidering reading–writing relationships in primary school children

The extent to which children's reading experiences influence their writing production is not well understood. It is imperative that the connections between these literacy practices are elucidated in order to inform the development of stimulating curricula and to support children's development. This paper presents new data and key findings from a project investigating relationships between children's free choice reading and volitional writing in Key Stage 2 (9–10 years). The data were collected in two primary schools in northern England, using mixed methods. Quantitative data were collected using an online reading survey taken by 170 children, and qualitative data were provided through independent writing journals maintained by 38 participants. Through analysis of the data using a multiliteracies approach, we demonstrate that the writing that children choose to do is influenced by the texts they encounter as readers in terms of content, text type and linguistic style. The child readers in this project encountered texts in different media and created texts in a range of genres. By examining a sample of children's written texts from the data set, we show that children's interactions and transactions with texts as readers and writers are complex and multiple. Children creatively work across media, and in doing so the boundaries of traditional text genres and styles are redeveloped and redesigned. These findings highlight the importance of providing children with opportunities to freely choose and create texts and recognising the wide variety of text experiences that children bring to their classroom learning.