Accelerometer data requirements for reliable estimation of habitual physical activity and sedentary time of children during the early years - a worked example following a stepped approach

This study presents a worked example of a stepped process to reliably estimate the habitual physical activity and sedentary time of a sample of young children. A total of 299 children (2.9 ± 0.6 years) were recruited. Outcome variables were daily minutes of total physical activity, sedentary time, moderate to vigorous physical activity and proportional values of each variable. In total, 282 (94%) provided 3 h of accelerometer data on ≥1 day and were included in a 6-step process: Step-1: determine minimum wear-time; Step-2: process 7-day-data; Step-3: determine the inclusion of a weekend day; Step-4: examine day-to-day variability; Step-5: calculate single day intraclass correlation (ICC) (2,1); Step-6: calculate number of days required to reach reliability. Following the process the results were, Step-1: 6 h was estimated as minimum wear-time of a standard day. Step-2: 98 (32%) children had ≥6 h wear on 7 days. Step-3: no differences were found between weekdays and weekend days (P ≥ 0.05). Step-4: no differences were found between day-to-day variability (P ≥ 0.05). Step-5: single day ICC’s (2,1) ranged from 0.48 (total physical activity and sedentary time) to 0.53 (proportion of moderate to vigorous physical activity). Step-6: to reach reliability (ICC = 0.7), 3 days were required for all outcomes. In conclusion following a 7 day wear protocol, ≥6 h on any 3 days was found to have acceptable reliability. The stepped-process offers researchers a method to derive sample-specific wear-time criterion.     

Differential recognition of children's cultural practices in middle primary literacy classrooms

This paper argues that teachers' recognition of children's cultural practices is an important positive step in helping socio‐economically disadvantaged children engage with school literacies. Based on 21 longitudinal case studies of children's literacy development over a 3‐year period, the authors demonstrate that when children's knowledges and practices assembled in home and community spheres are treated as valuable material for school learning, children are more likely to invest in the work of acquiring school literacies. However, they also show that while some children benefit greatly from being allowed to draw on their knowledge of popular culture, sports and the outdoors, other children's interests may be ignored or excluded. Some differences in teachers' valuing of home and community cultures appeared to relate to gender dimensions.     

Improving the Acquisition of Novel Vocabulary Through the Use of Imagery Interventions

The purpose of this study was to investigate the impact of imagery interventions on the vocabulary acquisition abilities of second grade students. A total of 15 students were randomly assigned to three different intervention conditions: Word Only, which involves the simple verbal presentation of a vocabulary word; Dual Coding, in which a picture was paired with the vocabulary word, and Image Creation, in which students were told to create a mental picture of the vocabulary word in their mind and draw it on paper. These students were taught a total of 21 vocabulary words: seven animal and habitat words, seven musical instrument terms, and seven science terms. A Latin square design was used, in which each group of students rotated through each of the interventions, being exposed to a different treatment condition for each category of words. Participants were measured on the number of words they were successfully able to acquire through the use of experimenter designed comprehension measures. While no statistical significance was shown between the interventions across the word categories, a significant difference was found between the Image Creation and Word Only interventions within the science terms category. Students also reported that the imagery interventions facilitated the ease with which they learned the words. The findings have implications for increasing the success of classroom instruction, specifically for presenting novel vocabulary words to early elementary learners using imagery methods.     

Learning science through writing: associations with prior conceptions of writing and perceptions of a writing program

Students in a large undergraduate biology course were expected to write a scientific report as a key part of their course design. This study investigates the quality of learning arising from the writing experience and how it relates to the quality of students’ preconceptions of learning through writing and their perceptions of their writing program that led to their report. Closed‐ended questionnaires investigating student conceptions and perceptions of writing, and approaches to writing, were completed by 121 students. Significant associations were found amongst qualitatively different prior and post conceptions of writing, approaches to writing and achievement. The results of the analyses suggest that the effective support of student experiences of writing reports requires teachers to be aware of the type of conceptions that students bring to their course and the perceptions they hold about the purpose of the writing program in which they are engaged.     

Physiotherapy Student Clinical Education: the influence of subjective judgements on observational assessment

The process of assessing students on clinical placements has to date been under‐researched. In particular, while the involvement of subjective judgements in assessing students has been discussed in the literature, there has been no attempt to look for systematic evidence. This paper comprises the first attempt to relate judgement theory to the assessment of vocational education. Preliminary results demonstrate that physiotherapy assessors made subjective judgements of their students, that these contributed to the determination of assessment grades, and that in certain cases these judgements were erroneous. The relationship of these subjective judgements to the awarding of grades via a supposedly objective assessment instrument is not yet known. Given the widespread use of such assessment instruments across different professions, the question raised is whether all observational assessment systems suffer from similar problems. If students are being judged on criteria not included on assessment instruments, perhaps the other criteria being used need to be made more explicit.     

A CASE FOR SELF‐ASSESSMENT BASED ON RECENT STUDIES OF STUDENT LEARNING

An account of an experiment in self‐assessed learning where the lecturer used his authority to give his students responsibility for their own assessment. Students were expected to set their own goals, week‐by‐week, and prepare a self‐assessment, which was open to questioning and discussion by other members of the group, but which involved only the individual student in the final decision.

The difficulties encountered are clearly stated, but the final judgment is that only such methods can achieve deep processing in Higher Education. It is also argued that conventional methods of evaluation are inappropriate for this style of learning.     

Learning about the past: exploring the opportunities and challenges of using an outdoor learning approach

This paper examines the potential of outdoor learning for supporting children’s understanding of and attitude towards history. A class of primary school children participated in an intensive experiential, residential history programme. A range of data was collected before, during and after the residential programme, and the findings suggest that the experience had a positive impact on the children’s attitude towards history and enabled many of the children to be able to easily recall highly specific factual knowledge. However, the children’s understanding of history as a provisional construct was not developed, as it was not a strong feature of the programme. Nor was the experiential nature of the experience fully exploited. Overall the study suggests that such a programme has the potential to support children’s learning of the past, but a deeper understanding of history, drawing on the benefits of outdoor learning pedagogy, needs to be planned for more explicitly.