Editorial

Ohne Zusammenfassung

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Editorial

     

Accuracy of metacognitive judgments as a moderator of learner control effectiveness in problem-solving tasks

A possible explanation for why students do not benefit from learner-controlled instruction is that they are not able to accurately monitor their own performance. The purpose of this study was to investigate whether and how the accuracy of metacognitive judgments made during training moderates the effect of learner control on performance when solving genetics tasks. Eighty-six undergraduate students solved self-selected genetics tasks using either a full learner control or a restricted learner control. Results indicated that learner control effectiveness was moderated by the absolute accuracy (i.e., absolute bias) of metacognitive judgments, and this accuracy was a better predictor of learning performance for full learner control than for restricted learner control. Furthermore, students’ prior knowledge predicted absolute accuracy of both ease-of-learning judgments (EOLs) and retrospective confidence judgments (RCJs) during training, with higher prior knowledge resulting in a better absolute accuracy. Overall, monitoring guided control, that is, EOLs predicted time-on-task and invested mental effort regardless of the degree of learner control, whereas RCJs predicted the total training time, but not the number of tasks selected during training. These results suggest that monitoring accuracy plays an important role in effective regulation of learning from problem-solving tasks, and provide further evidence that metacognitive judgments affect study time allocation in problem solving context.     

Akute Exazerbation bei COPD

Ohne Zusammenfassung     

Spectators’ points of attachment and their influence on behavioural intentions of women’s national football games

Research on women’s football is still, especially in Asia, scarce. The purpose of this research has been to investigate the underlying points of attachment of women’s football spectators and how these influence future behaviour. The points of attachment scale – drawing on social identity theory – developed previously has been modified for the research setting to detect whether they are general determinants or country-specific indicators. Research was conducted in two countries, namely Japan and Germany. Surveys were conducted at two friendlies of the national team in each country (Japan: n = 607; Germany: n = 597). Attachment with the team, coach and women’s sport were defining overall attachment best. Intention to attend matches of the national team was significantly predicted by football attachment and previously attended games, while intention to attend matches of the league was significantly predicted by attachment with the coach and attended league games in the past.     

Sozialer Status und Spendenverhalten Ehrenamtlicher in Sportvereinen

While much research has been done to analyze whether socioeconomic status influences prosocial behavior in the form of donations, no consensus has yet emerged in the relevant literature. We contribute to this research by studying, based on a dataset from a questionnaire of volunteers of sports clubs in Palatinate (part of Rhineland–Palatinate, Germany) whether social status affects donations. We measured social status of volunteers of sports clubs along the dimensions income, vocation, education and we considered status crystallization. Results showed that social status has a positive effect on the likelihood of donations. We report similarities and differences across different categories of donations (donations to one’s own sports club, to other clubs, to aid projects, and political parties).     

Parallel assessment of nutrition and activity in athletes: Validation against doubly labelled water, 24-h urea excretion,and indirect calorimetry

Abstract

The assessment of nutrition and activity in athletes requires accurate and precise methods. The aim of this study was to validate a protocol for parallel assessment of diet and exercise against doubly labelled water, 24-h urea excretion, and respiratory gas exchange. The participants were 14 male triathletes under normal training conditions. Energy intake and doubly labelled water were weakly associated with each other (r = 0.69, standard error of estimate [SEE] = 304 kcal · day^?1). Protein intake was strongly correlated with 24-h urea (r = 0.89) but showed considerable individual variation (SEE = 0.34 g · kg^?1 · day^?1). Total energy expenditure based on recorded activities was highly correlated with doubly labelled water (r = 0.95, SEE = 195 kcal · day^?1) but was proportionally biased. During running and cycling, estimated exercise energy expenditure was highly correlated with gas exchange (running: r = 0.89, SEE = 1.6 kcal · min^?1; cycling: r = 0.95, SEE = 1.4 kcal · min^?1). High exercise energy expenditure was slightly underestimated during running. For nutrition data, variations appear too large for precise measurements in individual athletes, which is a common problem of dietary assessment methods. Despite the high correlations of total energy expenditure and exercise energy expenditure with reference methods, a correction for systematic errors is necessary for the valid estimation of energetic requirements in individual athletes.     

A comparison of anthropometric and training characteristics of Ironman triathletes and Triple Iron ultra-triathletes

Abstract

We examined differences in anthropometry and training between 64 Triple Iron ultra-triathletes competing over 11.4 km swimming, 540 km cycling, and 126.6 km running, and 71 Ironman triathletes competing over 3.8 km swimming, 180 km cycling, and 42.2 km running. The association of anthropometry and training with race time was investigated using multiple linear regression analysis. The Triple Iron ultra-triathletes were smaller (P < 0.05), had shorter limbs (P < 0.05), a higher body mass index (P < 0.05), and larger limb circumferences (P < 0.01) than the Ironman triathletes. The Triple Iron ultra-triathletes trained for more hours (P < 0.01) and covered more kilometres (P < 0.01), but speed in running during training was slower compared with the Ironman triathletes (P < 0.01). For Triple Iron ultra-triathletes, percent body fat (P = 0.022), training volume per week (P < 0.0001), and weekly kilometres in both cycling (P < 0.0001) and running (P < 0.0001) were related to race time. For Ironman triathletes, percent body fat (P < 0.0001), circumference of upper arm (P = 0.006), and speed in cycling training (P = 0.012) were associated with total race time. We conclude that both Triple Iron ultra-triathletes and Ironman triathletes appeared to profit from low body fat. Triple Iron ultra-triathletes relied more on training volume in cycling and running, whereas speed in cycling training was related to race time in Ironman triathletes.     

The Role of the Mass Media in the Integration of Migrants

The media have a profound effect on the worldview of their consumers and should be carefully considered in matters of immigration. Often, migrants are portrayed through a negative lens by the media and most usually as a homogenous group rather than as individuals. This article examines the portrayal of migrants in one particular context (Germany) and questions what the best ways would be for handling these negative images, especially but not only in education systems. The author concludes that perhaps the combination of viewing migrants as individual people, rather than as a homogenous group, as well as more positive media portrayal of migrant people, would lead to a more positive representation of migrants in society.     

Living Animals in the Classroom: A Meta-Analysis on Learning Outcome and a Treatment–Control Study Focusing on Knowledge and Motivation

Prior research states that the use of living animals in the classroom leads to a higher knowledge but those previous studies have methodological and statistical problems. We applied a meta-analysis and developed a treatment–control study in a middle school classroom. The treatments (film vs. living animal) differed only by the presence of the living animal. Both treatments were based on the self-determination theory. More than 400 pupils filled in pre-test, post-test and two follow-up-tests (with a delay of 6–8 weeks and 7–8 months). After each lesson, pupils rated the lesson on a short intrinsic motivation scale. In the meta-analysis, we found that the living animal treatments significantly scored better than a control group, but not when comparing living animals with alternative treatments. In the treatment–control study, both treatments led to a significant increase in knowledge but there were no differences between film and living animal treatment. Pre-test and previous grading had a significant influence on post- and both follow-up tests. In the mouse lesson, pupils of the living animal group showed higher values in interest and competence and lower values in pressure. Interest and competence correlated positively with achievement, while pressure correlated negatively.