Seasonal progression and variability of repeat-effort line-drill performance in elite junior basketball players

To determine gender differences, positional differences, and patterns of change in the performance of the basketball line-drill test, 93 male (mean age 16.8 years, s = 1.1) and 95 female (mean age 16.5 years, s = 1.0) basketball players undertook 516 line-drill tests over a 5-year period. Log-transformed performance times were analysed using a mixed model that included quadratic within-participant fixed effects for time in the season and time in the programme. Changes and differences were standardized for interpretation of magnitudes. Mean performance times were 28.0 s (s = 1.3) for males and 30.4 s (s = 1.3) for females. The mean pattern of change in performance within a season differed substantially between the sexes and playing positions: male guards and female centres showed moderate to very large improvements mid-season of 1.1% and 3.5% respectively (90% confidence limits +/-2.1% and +/-3.0%), while female guards and male forwards showed large to very large decrements of -1.6% (+/-2.6%) and -2.4% (+/-2.0%). Over 3 years, males improved performance across all three playing positions by 1.4% (+/-1.3%) and females by 2.9% (+/-1.4%). Males improved performance by 0.2% (+/-0.5%) per year, whereas the performance of females deteriorated by 0.6% (+/-0.4%) per year. The differing patterns of performance change presumably reflect variations in training and competition loads, with short-term fluctuations in performance being managed to promote longer-term improvements.     

Teaching and Learning and the Challenge of Educational Reform

Creemers, B. (1994). The Effective Classroom. London Cassell. ISBN: 0-304-32709-3. Freiberg, H.J. & Driscoll, A. (1996). Universal Teaching Strategies. Needham Heights: Allyn and Bacon. ISBN: 0-205-16722-5. Hargreaves, A. (1994). Changing Teachers, Changing Times. London: Cassell. ISBN: 0-304-32281-4. Sizer, T.R. (1996). Horace's Hope. New York: Mariner Books. ISBN: 0395-87754-7. Slavin, R. (1996). Education for all. Lisse: Swets & Zeitlinger. ISBN: 90-265-1472-7.     

Effects of modified-implement training on fast bowling in cricket

The effects of training with overweight and underweight cricket balls on fast-bowling speed and accuracy were investigated in senior club cricket bowlers randomly assigned to either a traditional (n = 9) or modified-implement training (n = 7) group. Both groups performed bowling training three times a week for 10 weeks. The traditional training group bowled only regulation cricket balls (156 g), whereas the modified-implement training group bowled a combination of overweight (161-181 g), underweight (151-131 g) and regulation cricket balls. A radar gun measured the speed of 18 consecutive deliveries for each bowler before, during and after the training period. Video recordings of the deliveries were also analysed to determine bowling accuracy in terms of first-bounce distance from the stumps. Bowling speed, which was initially 108 +/- 5 km h(-1) (mean +/- standard deviation), increased in the modified-implement training group by 4.0 km x h(-1) and in the traditional training group by 1.3 km x h(-1) (difference, 2.7 km x h(-1); 90% confidence limits, 1.2 to 4.2 km x h(-1)). For a minimum worthwhile change of 5 km x h(-1), the chances that the true effect on bowling speed was practically beneficial/trivial/harmful were 1.0/99/< 0.1%. For bowling accuracy, the chances were 1/48/51%. This modified-implement training programme is not a useful training strategy for club cricketers.     

Relationship between world-ranking and Olympic performance of swimmers

Coaches believe world-ranking lists are a reliable tool for predicting international swimming performance. To examine the relationship between world-ranking and Olympic performance, we modelled world-ranking time and best time from the 2000 Olympic Games for 407 top-50 world-ranked swimmers. Analysis of log-transformed times yielded within-athlete and between-athlete coefficients of variation (CV) and percent changes in performance from world-rankings to Olympics. Variations and performance progressions were compared across sex, stroke, distance, nation and medal status. The within-athlete coefficient of variation of performance for all swimmers was 0.8% (95% confidence limits: 0.7 to 0.9%). Females were slightly less consistent, although not substantially different to males (ratio of female/male within-athlete CV: 1.1; 95% confidence limits: 1.0 to 1.2) and had a wider range of talent (ratio of female/male between-athlete CV: 1.2; 95% confidence limits: 1.1 to 1.4). Swimmers from Australia (AUS) were more consistent than those from the United States (USA) and other nations (OTHER) (ratio of within-athlete CV, USA/AUS: 1.5; 95% confidence limits: 1.0 to 2.2; OTHER/ AUS: 1.6; 95% confidence limits: 1.2 to 2.1). Most Olympic medallists (87%) had a top-10 world-ranking. Overall performance time at the Olympics was slower than world-ranking time by 0.3% (95% confidence limits: 0.2 to 0.4%), medallists improved by 0.6% (95% confidence limits: 0.4 to 0.9%) and non-medallists swam 0.6% slower (95% confidence limits: 0.5 to 0.7%). We conclude that a top-10 ranked swimmer who can improve performance time by 0.6%, equivalent to 0.13 s in the men's 50-m freestyle, will substantially increase their chance of an Olympic medal (the difference between first and fourth place).     

From Awareness to Action: College Students’ Skill Development in Intergroup Dialogue

A central goal of intergroup dialogue (IGD) is to strengthen individual and collective capacities to foster social justice commitments by supporting new ways of thinking about oneself, others, and the social structures in which we live. Relatedly, IGD assists individuals with building multicultural competencies and skill sets that support peoples’ capacities to take action and work towards social change. The following qualitative study contributes to current research by describing the types of skills undergraduate students report learning as a result of their IGD experience and the challenges they encounter as they develop communication, cognitive, and affective skills.     

‘Chocolate-covered Broccoli’? Games and the Teaching of Literature

Studies of the way games and gaming align themselves with the pedagogy of the humanities have left behind a key discipline: that of literary studies, as opposed to literacy studies, a far more common concern among scholars who have examined the impact of games on university and secondary teaching. This paper considers the reasons for such a lacuna of the literary and enters into a philosophical critique of the grounds on which games have been advanced as a tool for pedagogy in recent work. Interrogating recent scholars’ use of epistemological and sociological paradigms, the paper advances a more liberal and sophisticated concept of the game that better answers the needs of students and teachers in the literature classroom. It concludes with two examples of worked games that have significant potential to enhance learning.     

‘He's gone and wrote over it’: the use of wikis for collaborative report writing in a primary school classroom

Wikis (websites that can be edited quickly by multiple authors) were used with upper-primary school children to write group reports on a science topic. Two teachers observed the children working, and their observations were used alongside the texts from the wikis and group interviews with children to explore the question of whether using wikis would lead to a change in writing practices and attitudes. This study found that although children often felt proprietorial about their texts, there was some evidence of negotiation and of joint content building. There was also evidence of peer-supported learning of information and communications technology (ICT) skills. Furthermore, the quality and quantity of writing were greater when using wikis than in conventional writing contexts, and the groups which engaged in more discussion produced more text.