Classroom instructional quality,exposure to mathematics instruction and mathematics achievement in fifth grade

This study examined the quality of teacher–child interactions and exposure to mathematics instruction as predictors of 5th grade student’s mathematics achievement. The sample was a subset of the children involved in the NICHD–SECC longitudinal study (N = 657). Results indicate that, even after controlling for student demographic characteristics, more exposure to mathematics instruction was related to increased fifth grade mathematics achievement for both calculations and applied problems assessments, but there was no main effect for improved instructional quality. Findings also indicate that, in classrooms where lower instructional quality was observed, greater exposure to mathematics instruction predicted improved mathematics achievement. Findings are discussed in terms of differing aspects of mathematics instruction and the possible compensatory role of exposure to instruction in classrooms of lower quality.     

Can a social networking site support afterschool group learning of Mandarin?

Schools are often encouraged to facilitate extra-curricular learning within their own premises. This study addresses the potential of social networking sites (SNS) for supporting such out-of-class study. Given concerns that learning on these sites may happen at a surface level, we adopted self-determination theory for designing a social networking experience that aspired to offer a ‘community of inquiry’. A case study of a Mandarin class is reported, in which seven children voluntarily attended afterschool lessons and used a SNS for 12 weeks. Pedagogical strategies to create a sense of relatedness and competence and to offer autonomy support were used in order to steer their informal communication and exploration towards deep and meaningful learning. Our findings show that the online social networking activities are not used simply to extend formal lessons to informal online environment, instead they open up opportunities for students to benefit from informal exploration and thus enrich their experience of learning about the subject.     

The effects of test anxiety on learning at superficial and deep levels of processing

The effect of test anxiety on learning superficial and deep level tasks was examined. Ninety college students classified as either high or low test-anxious learned a paired-associate word list using either a superficial level or a deep level processing strategy. The results indicated that on the superficial level processing task, the performance of the low test-anxious students was not significantly different from that of the high test-anxious students, while on the deep level processing task the performance of the low test-anxious students was significantly better than the performance of the high test-anxious students. The results are discussed in the context of a cognitive-attentional theory of test anxiety and the mechanisms by which test anxiety may disrupt performance.     

Availability of accessible publications: designing a methodology to provide reliable estimates for the Right to Read Alliance

OBJECTIVES: To establish reliable estimates of the proportion of books available in formats accessible to visually impaired people; to recommend a practical method of updating the estimates. METHODS: The project had two stages. Stage one estimated the overall availability of all categories of books. The British National Bibliography (BNB) for 1999-2003 was chosen as the sampling frame. A sample of 2069 titles over the 5 years was selected using a systematic sample design. These titles were then checked for availability against the catalogues of four major producer/suppliers of materials in accessible formats. The second stage involved checking the availability of books in six genres; about 400 titles for each genre were examined. RESULTS: Of the titles selected for the overall estimate, 92 (4.4%) were found to be available in one or more accessible formats. Availability of titles in accessible formats varied greatly between categories. Adult fiction had the highest number of available publications (26.3%), least represented were cookery (1.9%) and gardening (1.8%). CONCLUSIONS: This study provided baseline figures and a methodology for the Right to Read Alliance to monitor their progress in campaigning for more books to be accessible to visually impaired people.     

Endurance training adherence in elite junior netball athletes: a test of the theory of planned behaviour and a revised theory of planned behaviour

This study examined the utility of Ajzen's (1985) theory of planned behaviour and Maddux's (1993) revised theory of planned behaviour to predict endurance training intentions and adherence of elite junior netball athletes. One hundred and fifteen athletes from the England Netball World Class Start Programme were assessed on constructs central to the predictions of the two theories. Adherence to a recommended endurance training programme was recorded in self-report diaries across a 9-week period. Validity for the diaries was supported by significant correlations (P < 0.001) with recalls across 7 days and 9 weeks. Adherence was moderate and variable between athletes (mean = 66.05, s = 25.75%). Two separate path analyses were conducted to examine the predictions of the theories. Goodness-of-fit indices suggested acceptable fit of the data to the models. Analyses showed that attitude towards the new behaviour, subjective norms and perceived behavioural control predicted training intentions. The relationship between intention and adherence was weak. The present results suggest that the constructs of the theory of planned behaviour offer some insight into the explanation of intentions to follow an endurance training programme. Constructs unique to the revised theory of planned behaviour did not significantly predict training intentions or behaviour. Implications for practitioners working with team sport performers are provided.     

DNA capture-probe based separation of double-stranded polymerase chain reaction amplification products in poly(dimethylsiloxane) microfluidic channels

Herein, we describe the development of a novel primer system that allows for the capture of double-stranded polymerase chain reaction (PCR) amplification products onto a microfluidic channel without any preliminary purification stages. We show that specially designed PCR primers consisting of the main primer sequence and an additional “tag sequence” linked through a poly(ethylene glycol) molecule can be used to generate ds-PCR amplification products tailed with ss-oligonucleotides of two forensically relevant genes (amelogenin and human c-fms (macrophage colony-stimulating factor) proto-oncogene for the CSF-1 receptor (CSF1PO). Furthermore, with a view to enriching and eluting the ds-PCR products of amplification on a capillary electrophoretic-based microfluidic device we describe the capture of the target ds-PCR products onto poly(dimethylsiloxane) microchannels modified with ss-oligonucleotide capture probes.     

Repeated exercise stress impairs volitional but not magnetically evoked electromechanical delay of the knee flexors

The effects of serial episodes of fatigue and recovery on volitional and magnetically evoked neuromuscular performance of the knee flexors were assessed in 20 female soccer players during: (i) an intervention comprising 4 × 35 s maximal static exercise, and (ii) a control condition. Volitional peak force was impaired progressively (-16% vs. baseline: 235.3 ± 54.7 to 198.1 ± 38.5 N) by the fatiguing exercise and recovered to within -97% of baseline values following 6 min of rest. Evoked peak twitch force was diminished subsequent to the fourth episode of exercise (23.3%: 21.4 ± 13.8 vs. 16.4 ± 14.6 N) and remained impaired at this level throughout the recovery. Impairment of volitional electromechanical delay performance following the first episode of exercise (25.5%: 55.3 ± 11.9 vs. 69.5 ± 24.5 ms) contrasted with concurrent improvement (10.0%: 24.5 ± 4.7 vs. 22.1 ± 5.0 ms) in evoked electromechanical delay (P < 0.05), and this increased disparity between evoked and volitional electromechanical delay remained during subsequent periods of intervention and recovery. The fatiguing exercise provoked substantial impairments to volitional strength and volitional electromechanical delay that showed differential patterns of recovery. However, improved evoked electromechanical delay performance might identify a dormant capability for optimal muscle responses during acute stressful exercise and an improved capacity to maintain dynamic joint stability during critical episodes of loading.     

Hearing dogs: a longitudinal study of social and psychological effects on deaf and hard-of-hearing recipients

The organization Hearing Dogs for Deaf People provides assistance dogs that alert their deaf or hard-of-hearing recipients to key sounds, thus increasing their independence and also providing companionship. Fifty-one recipients took part in a longitudinal study to monitor the dogs' working performance over time and to examine the social and psychological effects of having a Hearing Dog. The Profile of Mood State (POMS) questionnaire and the General Health Questionnaire (GHQ) were used together with a Hearing Dog Questionnaire (HDQ) specifically developed for this study. There were a number of significant differences in measures of well-being between the period prior to placing the Hearing Dog and the period after placement, but there were no comparable differences during the year-long waiting period prior to placement of the dog. Recipients reported significant reductions in hearing-related problems such as response to environmental sounds; significant reductions in measures of tension, anxiety, and depression; and significant improvements in social involvement and independence. The longitudinal nature of this study supports evidence that these improvements persist for some time after the placement of a dog, with significant differences being reported, in many cases, up to 18 months after acquiring a dog.     

Teaching development for doctoral students: what can we learn from activity theory?

This paper explores issues relating to programmes for doctoral students wishing to gain experience of, and develop skills in, teaching. The focus is on “Developing Learning and Teaching” – a new provision at the University of Oxford. The purpose is to exemplify how activity theory can be used to situate particular programmes and individual experiences in a wider systemic setting. The authors explain the concepts of the activity system, and use these to identify systemic tensions (analysing university‐wide survey data), then to assess whether the provision has addressed these tensions (analysing data from interviews with participants).

Cet article explore les questions soulevées par les programmes destinés aux doctorants intéressés à acquérir une expérience d’enseignement et à développer leurs compétences d’enseignement. Le centre d’intérêt est placé sur ? «Developing Learning and Teaching» ? – un nouveau cours offert à l’université d’Oxford. L’objectif est de démontrer comment la théorie de l’activité peut être utilisée de façon à situer des programmes spécifiques et des expériences individuelles dans un contexte systémique plus vaste. Nous expliquons les concepts du système d’activité et utilisons ceux‐ci de façon à identifier des tensions systémiques (par l’analyse de données recueillies par questionnaire à la grandeur de l’université), puis évaluons si le cours cible ces tensions (par l’analyse de données recueillies par entretien auprès des participants).