Using Resampling to Compare Two Proportions

This article shows that when applying resampling methods to the problem of comparing two proportions, students can discover that whether you resample with or without replacement can make a big difference.     

Comparison of older and younger adults' attitudes towards and abilities with computers: Implications for training and learning

Computers and associated technology have become central to modern life. In a society where the population is rapidly ageing, the acceptance and utilisation of developing technologies by an older population is becoming increasingly important. This review highlights similarities and differences between the attitudes and acceptance of technology by older and younger people, leading to the conclusion that similar factors influence both age groups—hence, older people could well be taught to use technology in a similar manner to younger people. While all learners, irrespective of age, should receive sufficient time for training in a positive and supportive environment, this review suggests that due consideration ought to be given to the amount of time allowed for older users to learn new skills and the manner in which learners are treated in a positive and valued manner.     

The impact of content area focus on the effectiveness of a web‐based simulation

This paper describes an assessment of a web‐based interview simulation designed to teach empathetic helping skills. The system includes an animated character acting as a client and responses designed to recreate a simulated role‐play, a common assessment method used for teaching these skills. The purpose of this study was to determine whether learning gains found in previous evaluations would transfer to students needing similar skill sets but in different areas of study. Findings indicate a positive trend in learning gains across both areas of study (human services and counselling) with no significant differences in skill acquisition. Developers of the system conclude that the system is effective in the general training of empathetic helping skills regardless of the students' area of study.     

Private Speech Moderates the Effects of Effortful Control on Emotionality

Research Findings: In addition to being a regulatory strategy, children’s private speech may enhance or interfere with their effortful control used to regulate emotion. The goal of the current study was to investigate whether children’s private speech during a selective attention task moderated the relations of their effortful control to their anger and sadness. The private speech of 156 preschoolers (age in months: M = 52.10, SD = 9.24, min = 36.20, max = 69.50) was transcribed and coded during a selective attention task. Effortful control was observed and reported by parents. Anger and sadness were reported by parents and observed in a frustration task. Children who used more inaudible muttering had higher levels of sadness. Effortful control interacted with private speech to explain anger. The negative relation of effortful control to anger was significant for children who used low and moderate but not high levels of task-irrelevant private speech. Practice or Policy: The presence of private speech, although it may support regulatory abilities within a task, may be an additional form of evaluation that might help teachers and caregivers decide how best to support children’s learning. These findings suggest that private speech can be used as an indicator of how well children use other regulatory abilities, such as effortful control.     

Navigating nature,culture and education in contemporary botanic gardens

Increasingly, humans are an urban species prone to ‘plant blindness’. This demographic shift and situation has implications for both individual and collective perceptions of nature, as well as for addressing ‘ecophobia’ and encouraging ‘biophilia’ through education. Contemporary humanity occupies a world in which extensive physical change, both in the landscape and its related organisms, is occurring . Education-related debates on these issues links to the noted phenomenon of a ‘bubble wrap generation’ growing up within ‘nature-deficit’ childhoods in ‘megalopolitan cities’. Indeed, some commentators consider that 'nature has already disappeared' and exists only in protected spaces. Such perceptions have consequences for education in ‘presented world’ settings such as zoos, botanic gardens and natural history museums. This editorial, and its associated collection of papers, considers the critical relationships between nature, culture and education in contemporary botanic gardens and the ways in which visitors navigate their journeys, as demonstrated by research.     

Shifting Lenses to Deepen Reflection and Connection in Human Sexuality Education

Photovoice, a participatory action research method, supports deep, personal reflection through the use of photography, personal narrative development, and group discussion. This lesson plan describes the use of Photovoice as a pedagogical tool in an undergraduate human sexuality course. The goal of this activity is to encourage students to 1) think beyond the texts presented in class, 2) make critical connections to their own lived experience and community context, and 3) deepen reflection through sharing and discussing with others. The lesson plan describes the process of bringing Photovoice into the classroom as well as student insights on the activity.     

An Investigative,Cooperative Learning Approach to the General Microbiology Laboratory

Investigative- and cooperative-based learning strategies have been used effectively in a variety of classrooms to enhance student learning and engagement. In the General Microbiology laboratory for juniors and seniors at James Madison University, these strategies were combined to make a semester-long, investigative, cooperative learning experience involving culture and identification of microbial isolates that the students obtained from various environments. To assess whether this strategy was successful, students were asked to complete a survey at the beginning and at the end of the semester regarding their comfort level with a variety of topics. For most of the topics queried, the students reported that their comfort had increased significantly during the semester. Furthermore, this group of students thought that the quality of this investigative lab experience was much better than that of any of their previous lab experiences.     

Influence of vitamin D mushroom powder supplementation on exercise-induced muscle damage in vitamin D insufficient high school athletes

Abstract

Incidence of vitamin D deficiency is increasing worldwide. The purpose of this study was to determine if supplementation with vitamin D₂ from Portobello mushroom powder would enhance skeletal muscle function and attenuate exercise-induced muscle damage in low vitamin D status high school athletes. Participants were randomised to Portobello mushroom powder (600 IU/d vitamin D₂) or placebo for 6 weeks. Participants then completed a 1.5-h exercise session designed to induce skeletal muscle damage. Blood samples and measures of skeletal muscle function were taken pre-supplementation, post-supplementation/pre-exercise and post-exercise. Six weeks supplementation with vitamin D₂ increased serum 25(OH)D₂ by 9.9-fold and decreased serum 25(OH)D₃ by 28%. Changes in skeletal muscle function and circulating markers of skeletal muscle damage did not differ between groups. In conclusion, 600 IU/d vitamin D₂ increased 25(OH)D₂ with a concomitant decrease in 25(OD)D₃, with no effect on muscular function or exercise-induced muscle damage in high school athletes.