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81.
A common suggestion made in the psychometric literature for fixed‐length classification tests is that one should design tests so that they have maximum information at the cut score. Designing tests in this way is believed to maximize the classification accuracy and consistency of the assessment. This article uses simulated examples to illustrate that one can obtain higher classification accuracy and consistency by designing tests that have maximum test information at locations other than at the cut score. We show that the location where one should maximize the test information is dependent on the length of the test, the mean of the ability distribution in comparison to the cut score, and, to a lesser degree, whether or not one wants to optimize classification accuracy or consistency. Analyses also suggested that the differences in classification performance between designing tests optimally versus maximizing information at the cut score tended to be greatest when tests were short and the mean of ability distribution was further away from the cut score. Larger differences were also found in the simulated examples that used the 3PL model compared to the examples that used the Rasch model. 相似文献
82.
Against a background of increasing student eligibility for ‘access arrangements’ in examinations for the General Certificate of Secondary Education (GCSE), this article examines the processes within schools that structure a student's access to the provision of reading support, including staff and student viewpoints. Dominic Griffiths, who is a Senior Advisory Teacher with Tameside Local Authority Education Psychology and Learning Support Team, and Kevin Woods, who is a Senior Lecturer in Educational and Child Psychology at the University of Manchester, report upon a series of four case studies, each based within an urban secondary school offering some form of reading support to students in GCSE examinations. Each case study incorporates student interviews, observations of reading support in action, and interviews with staff who manage and provide reading support in examinations. Quantitative findings show an association between students' preferred mode of reading support and the location in which it is provided. Qualitative analyses revealed key themes relating to the dynamics of provision and use of reading support, including ‘student worthiness’, ‘relationships’ and ‘unfair advantage’. Recommendations are made for a more central role for student consultation within processes for providing reader support to GCSE examination candidates. 相似文献
83.
Joel T. Fuller Dominic Thewlis Margarita D. Tsiros Nicholas A. T. Brown Joseph Hamill Jonathan D. Buckley 《European Journal of Sport Science》2019,19(3):402-412
This study investigated whether male runners improve running performance, running economy, ankle plantar flexor strength, and alter running biomechanics and lower limb bone mineral density when gradually transitioning to using minimalist shoes for 100% of weekly running. The study was a planned follow-up of runners (n?=?50) who transitioned to minimalist or conventional shoes for 35% of weekly structured training in a previous 6-week randomised controlled trial. In that trial, running performance and economy improved more with minimalist shoes than conventional shoes. Runners in each group were instructed to continue running in their allocated shoe during their own preferred training programme for a further 20 weeks while increasing allocated shoe use to 100% of weekly training. At the 20-week follow-up, minimalist shoes did not affect performance (effect size: 0.19; p?=?0.218), running economy (effect size: ≤?0.24; p?≥?0.388), stride rate or length (effect size: ≤?0.12; p?≥?0.550), foot strike (effect size: ≤?0.25; p?≥?0.366), or bone mineral density (effect size: ≤?0.40; p?≥?0.319). Minimalist shoes increased plantar flexor strength more than conventional shoes when runners trained with greater mean weekly training distances (shoe*distance interaction: p?=?0.036). After greater improvements with minimalist shoes during the initial six weeks of a structured training programme, increasing minimalist shoe use from 35% to 100% over 20 weeks, when runners use their own preferred training programme, did not further improve performance, running economy or alter running biomechanics and lower limb bone mineral density. Minimalist shoes improved plantar flexor strength more than conventional shoes in runners with greater weekly training distances. 相似文献
84.
Joel T Fuller Dominic Thewlis Margarita D Tsiros Nicholas A.T Brown Jonathan D Buckley 《Journal of sports sciences》2016,34(18):1740-1745
The purpose of this study was to determine if minimalist shoes improve time trial performance of trained distance runners and if changes in running economy, shoe mass, stride length, stride rate and footfall pattern were related to any difference in performance. Twenty-six trained runners performed three 6-min sub-maximal treadmill runs at 11, 13 and 15 km·h?1 in minimalist and conventional shoes while running economy, stride length, stride rate and footfall pattern were assessed. They then performed a 5-km time trial. In the minimalist shoe, runners completed the trial in less time (effect size 0.20 ± 0.12), were more economical during sub-maximal running (effect size 0.33 ± 0.14) and decreased stride length (effect size 0.22 ± 0.10) and increased stride rate (effect size 0.22 ± 0.11). All but one runner ran with a rearfoot footfall in the minimalist shoe. Improvements in time trial performance were associated with improvements in running economy at 15 km·h?1 (r = 0.58), with 79% of the improved economy accounted for by reduced shoe mass (P < 0.05). The results suggest that running in minimalist shoes improves running economy and 5-km running performance. 相似文献
85.
A major decision that must be made during study pertains to the distribution, or the scheduling, of study. In this paper, we review the literature on the benefits of spacing, or spreading one's study sessions relatively far apart in time, as compared to massing, where study is crammed into one long session without breaks. The results from laboratory research provide strong evidence for this pervasive “spacing effect,” especially for long-term retention. The metacognitive literature on spacing, however, suggests that massing is the preferred strategy, particularly in young children. Reasons for why this is so are discussed as well as a few recommendations regarding how spacing strategies might be encouraged in real-world learning. While further research and applicability questions remain, the two fields—education and cognitive science—have made huge progress in recent years, resulting in promising new learning developments. 相似文献
86.
Dwyer DM 《Learning & behavior》2008,36(2):149-158
The microstructure of licking responses was analyzed to investigate the interaction between unconditioned responses to maltodextrin and the responses to flavor cues previously associated with maltodextrin. Experiment 1 demonstrated that although the consumption of maltodextrin peaked at intermediate concentrations, the mean lick cluster size showed a positive, monotonic increase with concentration. In Experiment 2, a (conditioned stimulus) CS+ flavor was paired with 16% maltodextrin, whereas a CS- flavor was paired with 2% maltodextrin. During test, consumption of the CS+ was higher than that of the CS- when the flavors were combined with 2% maltodextrin, but not when combined with 16% maltodextrin. In contrast, cluster size was larger with the CS+ than with the CS-, regardless of the concentration of maltodextrin present on test. Previous analyses of licking microstructure indicate that cluster size reflects the palatability of the ingested solution. Thus, the present results indicate that flavor conditioning can change the palatability of the cue flavors. Adding the CS+ flavor to maltodextrin produced results analogous to increasing the concentration of maltodextrin (in terms of both consumption and licking microstructure measures), which is consistent with the idea that after conditioning, responses to the CS+ flavor and to the unconditioned stimulus are mediated via the same representation. 相似文献
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Stephen Ayre Alison Brettle Dominic Gilroy Douglas Knock Rebecca Mitchelmore Sophie Pattison Susan Smith Jenny Turner 《Health information and libraries journal》2018,35(3):227-245