Why do bad balls get wickets? The role of congruent and incongruent information in anticipation

Skilled anticipation is underpinned by the use of kinematic and contextual information. However, few researchers have examined what happens when contextual information suggests an outcome that is different from the event that follows. We aimed to bridge this gap by manipulating the relationship between contextual information and final ball location in a cricket-batting task. We predicted that when contextual information is congruent with the eventual outcome then anticipation would be facilitated. In contrast, when contextual information is incongruent, this would lead to a confirmation bias on kinematic information and result in decreased anticipation accuracy. We expected this effect to be larger in skilled performers who are more able to utilise context. Skilled and less-skilled cricket batters anticipated deliveries presented using a temporally occluded video-based task. We created conditions whereby contextual information and event outcome were either congruent or incongruent. There was a significant skill by condition interaction (p < 0.05). The skilled group anticipated significantly more accurately than the less-skilled group on the congruent trials. Both groups anticipated less accurately on incongruent trials, with the skilled participants being more negatively affected. Skilled performers prioritise contextual information and confirmation bias affects the use of kinematic information available later in the action.     

Pacing during a cross-country mountain bike mass-participation event according to race performance,experience, age and sex

This study describes pacing strategies adopted in an 86-km mass-participation cross-country marathon mountain bike race (the ‘Birkebeinerrittet’). Absolute (km·h^?1) and relative speed (% average race speed) and speed coefficient of variation (%CV) in five race sections (15.1, 31.4, 52.3, 74.4 and 100% of total distance) were calculated for 8182 participants. Data were grouped and analysed according to race performance, age, sex and race experience. The highest average speed was observed in males (21.8?±?3.7?km/h), 16–24?yr olds (23.0?±?4.8?km/h) and those that had previously completed >4 Birkebeinerrittet races (22.5?±?3.4?km/h). Independent of these factors, the fastest performers exhibited faster speeds across all race sections, whilst their relative speed was higher in early and late climbing sections (Cohen's d?=?0.45–1.15) and slower in the final descending race section (d?=?0.64–0.98). Similar trends were observed in the quicker age, sex and race experience groups, who tended to have a higher average speed in earlier race sections and a lower average speed during the final race section compared to slower groups. In all comparisons, faster groups also had a lower %CV for speed than slower groups (fastest %CV?=?24.02%, slowest %CV?=?32.03%), indicating a lower variation in speed across the race. Pacing in a cross-country mountain bike marathon is related to performance, age, sex and race experience. Better performance appears to be associated with higher relative speed during climbing sections, resulting in a more consistent overall race speed.     

Examining the World Around Us: Critical Media Literacy in Teacher Education

This article presents findings from action research conducted in a graduate level course with practicing K–12 educators. In this article, I consider the usefulness of critical media literacy in the graduate classroom as I engaged students in discussions about multicultural issues including race, class, gender, sexuality, and ability. Through an examination of student presentations and field notes collected over the course of the semester, I found the graduate student participants were typically quite savvy at evaluating the messages they receive from media. Further, I found the incorporation of popular media into the classroom helped students grapple with typically foreign and often theoretically dense concepts like unconscious racism and heteronormativity, as well as theories like critical race theory, intersectionality, and queer theory. The graduate student participants were able to see deep connections between text/theory and media and often used various media to illustrate theory in quite complex ways. Lastly, engaging with texts of everyday life and using visual representations helped students interrogate the concepts explored in the course and provided students access to theory otherwise regarded as inaccessible.     

Pedagogy and performativity: Rendering laboratory lives in the documentary "Naturally obsessed: the making of a scientist"

A recently released documentary on life in a protein crystallography laboratory offers an exemplary opportunity to examine how a popular account of scientific training models narrowly defined norms of masculinity and mentorship and simultaneously sets these as the tacit conditions for success in science. Rather than treating this documentary as a good or bad representation of what life in the lab is actually like, this analysis draws attention to how the scientists featured in the film perform for the camera and how the filmmakers splice together the action to animate an engaging story. This essay shows how this popular and widely circulating documentary frames science as a game to be won and stages scientific success on an agonistic playing field. Those who can "make it" are those who are tough enough and those who are willing and able to get entangled in the taunting, jesting, and jostling relationships that appear to be required for mentorship in this lab. The essay argues that this documentary tethers this model of success in science to restrictive norms of masculinity and in so doing promotes a pedagogical culture that fosters competition, rivalry, and ritualized shame. Feminist theories of performativity are engaged to consider the iterative processes through which narrowly circumscribed masculinities and styles of pedagogy are sedimented and naturalized. This essay aims to spur renewed attention to the care historians and anthropologists might take to examine the often hidden tropes that are lurking inside the stories about science that we find so salient.     

A modified incremental shuttle run test for the determination of peak shuttle running speed and the prediction of maximal oxygen uptake.

The aim of this study was to determine the incidence of subject drop-out on a multi-stage shuttle run test and a modified incremental shuttle run test in which speed was increased by 0.014 m x s(-1) every 20-m shuttle to avoid the need for verbal speed cues. Analysis of the multi-stage shuttle run test with 208 elite female netball players and 381 elite male lacrosse players found that 13 (+/-3) players stopped after the first shuttle of each new level, in comparison with 5 (+/-2) players on any other shuttle. No obvious drop-out pattern was observed on the incremental shuttle run test with 273 male and 79 female undergraduate students. The mean difference between a test-retest condition (n = 20) for peak shuttle running speed (-0.03+/-0.01 m x s(-1)) and maximal heart rate (0.4+/-0.1 beats x min(-1)) on the incremental test showed no bias (P > 0.05). The 95% absolute confidence limits of agreement were+/-0.11 m x s(-1) for peak shuttle running speed and+/-5 beats min(-1) for maximal heart rate. The relationship (n = 27) between peak shuttle running speed on the incremental shuttle run test (4.22+/-0.14 m x s(-1)) and VO2max (59.0+/-1.7 ml kg(-1) x min(-1)) was r= 0.91 (P< 0.01), with a standard error of prediction of +/-2.6 ml x kg(-1) x min(-1). These results suggest verbal cues during the multi-stage shuttle run test may influence subject drop-out. The incremental shuttle run test shows no obvious drop-out patten and provides a valid estimate of VO2max.     

The effects of age and sublexical automaticity on reading outcomes for students with reading disabilities

For students with reading disabilities, reading fluency has proven difficult to remediate. The current study examined age‐related effects on measures of word and text‐reading outcomes, within the context of a phonologically based remedial reading program. The contribution of speeded‐reading of sublexical sound–spelling patterns to fluency outcomes was also examined. The youngest group of participants showed better outcomes on measures of word and pseudoword reading. All age groups made significant and meaningful improvements on measures of reading fluency and reading comprehension. Participants' mastery of speeded, sublexical sound–spelling reading contributed variance to fluency outcomes beyond pre‐intervention fluency scores. Practice with sublexical spelling patterns may be one important component of programs directed at remediating accuracy and fluency deficits for students with reading disabilities. What is already known about this topic

• Reading fluency has proven difficult to remediate for students with reading disabilities.
• Training with sublexical sound–spelling patterns has increased recognition of the trained patterns, but transfer has been limited.
• Young children with reading difficulties appear to have an advantage at closing the reading achievement gap; however, there are some inconsistencies in the literature.

What this paper adds

• Automaticity with sublexical patterns made a unique contribution to fluency outcomes in this sample of students with reading disabilities.
• In the context of the reading program examined, all age groups made significant and meaningful standard score gains on reading fluency.
• Young children did not score higher than the two older groups on measures of oral reading fluency or reading comprehension; bringing into question conclusions drawn from prevention versus intervention studies.

Implications for theory and practice

• Findings lend support to models of reading acquisition that emphasize multilayered, sublexical spelling–sound knowledge as important to reading fluency, beyond that of sight‐word reading efficiency.
• Including speeded practice of a broad range of sublexical sound–spelling patterns and training these to mastery deserves further study as one potential approach to improving fluency interventions for students with reading disabilities.
• We suggest that this sublexical training may mimic reading practice in terms of building orthographic representations that support fluent reading.

     

The government printing office cataloging records: Opportunities and problems

The first part of this article describes the GPO cataloging records on the GPO MARC tapes, on OCLC, and in the monthly Catalog, and introduces a costeffective method of using these records in a library catalog. The second part of the article presents a proposal for the comprehensive correction and updating of the GPO cataloging records.     

No Natives Here: A Focus Group Study of Student Perceptions of Web 2.0 and the Academic Library

This study explores Web 2.0 technologies in an academic library through focus groups with undergraduates at Kent State University. Results reveal that students, despite being heavy users, are less sophisticated and expressive in their use of Web 2.0 than presumed. Students set clear boundaries between educational and social spaces on the Web, and the library may be best served by building Web 2.0 into its site and extending its services into course management systems.     

Evaluating the predictability of distance race performance in NCAA cross country and track and field from high school race times in the United States

Successful recruiting for collegiate track & field athletes has become a more competitive and essential component of coaching. This study aims to determine the relationship between race performances of distance runners at the United States high school and National Collegiate Athletic Association (NCAA) levels. Conditional inference classification tree models were built and analysed to predict the probability that runners would qualify for the NCAA Division I National Cross Country Meet and/or the East or West NCAA Division I Outdoor Track & Field Preliminary Round based on their high school race times in the 800 m, 1600 m, and 3200 m. Prediction accuracies of the classification trees ranged from 60.0 to 76.6 percent. The models produced the most reliable estimates for predicting qualifiers in cross country, the 1500 m, and the 800 m for females and cross country, the 5000 m, and the 800 m for males. NCAA track & field coaches can use the results from this study as a guideline for recruiting decisions. Additionally, future studies can apply the methodological foundations of this research to predicting race performances set at different metrics, such as national meets in other countries or Olympic qualifications, from previous race data.