Gender differences in social reputation and peer rejection at school / Diferencias de género en la reputación social y el rechazo entre iguales en la escuela

The objectives of this study are twofold: to see if gender differences in social reputation remain stable throughout schooling, and to analyse behavioural differences between boys and girls with rejected status. A sociometric test was carried out and the Allocation of Perceptive Attributes Method was applied to a sample of 777 students in the mid-cycle and upper-cycle of primary education (years three to six) and the first cycle of CSE (Compulsory Secondary Education). The results show that differences in social reputation remain stable throughout schooling, with the exception of a few trends. We also find that rejection in boys is characterized by behavioural attributes, while characteristics associated with rejection in girls seem to be more subtle. It is concluded that gender ought to be taken into account in the design and implementation of intervention programmes aimed at improving the social integration of students.     

Instructional approaches to foster third graders’ adaptive use of strategies: an experimental study on the effects of two learning environments on multi-digit addition and subtraction

The adaptive use of strategies, that is selecting a strategy which allows an efficient solution for a given problem, can be considered as an important individual ability relevant in various domains. Based on models of subjects’ skills of adaptive use of strategies, two idealized instructional approaches are suggested to foster students in their strategy development. The explicit approach aims at reducing cognitive load by demonstrating and practicing strategies combined with an explicit identification of criteria for strategy efficiency by contrasting problem solutions. The implicit approach capitalizes on the generation effect and stimulates students to generate their own strategies and efficiency criteria based on the analysis of task characteristics and the comparison of problem solutions. In a 1-week experimental study (16 lessons) with 73 third-graders, we examined the effectiveness of these instructional approaches in the domain of multi-digit addition and subtraction. Results from post- and two follow-up tests after 3 and 8?months did not yield different effects of the two approaches on students’ skills in adaptive use of strategies. A comparison of strategies used by the students showed that the students of the explicit approach more frequently applied complex strategies whereas the students from the implicit approach showed a more sustainable use of self-generated strategies. Hence, for the adaptive use of those strategies students are able to generate, the implicit approach turned out to be more effective than the explicit approach. However, this generation effect does not hold for strategies which are too complex to be generated by students.     

Effect of delay on search decisions in a task-oriented reading environment

The goal of this study was to determine the effect of setting a delay between reading a text and answering comprehension questions on when-to-search and what-to-search decisions in a task-oriented reading environment. Fifty-five eighth-grade students were randomly divided into two groups. One group read one text, answered comprehension questions regarding the text with the text available, and subsequently repeated the procedure with a second text (immediate condition). The other group read both texts first and then answered, with the texts available, the questions for the first text and then for the second text (delayed condition). In both conditions, the readers’ actions during the task were recorded. The results demonstrated that the students in the delayed condition made more search decisions. In addition, moderated mediation analyses indicated that setting a delay had a positive indirect effect on performance via increased searching only for the students with average and high comprehension skills. Moreover, decisions regarding what information to search for depended exclusively on comprehension skill. Instructional implications are discussed.     

What if privatising higher education becomes an issue? The case of Chile and Mexico

Over the last 30 years, Chile and Mexico have been implementing neoliberal policies to reform their higher education systems. This report compares the development and impact of those policies within three main areas in both countries, namely: (1) trends and characteristics of the growing private higher education sector, (2) commercialisation and business-like trends that private academia is experiencing and, finally, (3) it discusses how all this has created tensioning situations with assessment and accrediting agencies to ensure quality in their private higher education systems. This study shows that private higher education is facing the following challenges in both nations: (1) an uncritical implementation of neoliberal policies, (2) that there is a very unregulated legislation that has allowed many private institutions to profit within loopholes in the law, (3) that quality has become a central concern and some of the mechanisms applied to correct it have not been effective, showing a lack of a comprehensive system of quality assessment, and (4) that enrolment has grown but with several mismatches that challenge the initial goal of advancing economic development through human resources capacities. Alternative policies are discussed.     

Resource location and structural properties of the nestbox as determinants of nest-site selection in the golden hamster

Nest-site selection, an ecologically relevant behavior, was studied in the golden hamster in a model environment where the animals could choose between nestboxes differing in distance from resource or in structural features (size and illumination). Experiment 1 showed that hamsters can decrease foraging costs by setting their nests in the nestbox nearest to the food and/or nestmaterial sources, and that hoarding costs, as distinct from simple procurement costs, are taken into account in the choice process. Preferences for darker and larger nestboxes were obtained in Experiment 2. Experiment 3 revealed an internally coherent hierarchical pattern in preferences, with illumination being more important than size and resource distance, and size more important than resource distance. The results suggest that nest-site selection and foraging behaviors are parts of an integrated causal system.     

Science education through informal education

To develop the pedagogic efficiency of informal education in science teaching, promoting a close cooperation between institutions is suggested by Monteiro, Janerine, de Carvalho, and Martins. In their article, they point out effective examples of how teachers and educators work together to develop programs and activities at informal education places such as science museums. Their study explored and discussed the viability and relevancy of school visits to museums and possibilities to enhance the connection between students’ visits in informal contexts and their learning in schools. Given that students learn science by crossing the boundaries of formal and informal learning contexts, it is critical to examine ways of integrated and collaborative approach to develop scientific literacy to help students think, act and communicate as members of problem solving communities. In this forum, we suggest the importance of students’ lifeworld contexts in informal learning places as continuum of Monteiro, Janerine, de Carvalho, and Martins’ discussion on enhancing the effectiveness of informal learning places in science education.     

Using the Flipped Classroom Model in Your Library Instruction Course

In the flipped classroom model, the pedagogical paradigm is reversed and the students learn the class lesson at home and do homework in class. Although much of the focus of the flipped model has been on the secondary education level, this model could be a viable way to teach library instruction sessions to college-level students as well as a way to preserve scarce class time. This article examines a project that was done at LIU Post, where an instructor of the Library Competency Workshop course flipped the classroom and compared test results to sections where the class was run in a traditional lecture classroom model as well as the experiences on how the instructor flipped the classroom.     

A spectral analysis of team dynamics and tactics in Brazilian football

Abstract

The purposes of this study were to characterise the total space covered and the distances between players within teams over ten Brazilian First Division Championship matches. Filmed recordings, combined with a tracking system, were used to obtain the trajectories of the players (n = 277), before and after half-time. The team surface area (the area of the convex hull formed by the positions of the players) and spread (the Frobenius norm of the distance-between-player matrix) were calculated as functions of time. A Fast Fourier Transform (FFT) was applied to each time series. The median frequency was then calculated. The results of the surface area time series median frequencies for the first half (0.63 ± 0.10 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.47 ± 0.14 cycles · min^?1). Similarly, the spread variable median frequencies for the first half (0.60 ± 0.14 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.46 ± 0.16 cycles · min^?1). The median frequencies allowed the characterisation of the time series oscillations that represent the speed at which players distribute and then compact their team formation during a match. This analysis can provide insights that allow coaches to better control the team organisation on the pitch.     

Landing techniques in volleyball

Abstract

Knee injuries such as anterior cruciate ligament lesions and patellar tendonitis are very frequent in volleyball, and are often attributed to micro traumas that occur during the landing phase of airborne actions. The aim of the present study was to compare different jumping activities during official men's and women's volleyball games. Twelve top-level matches from the Italian men's and women's professional leagues were analysed. The jumps performed during the games were classified according to the landing technique used by the player (left or right foot or both feet together), court position, and ball trajectory. Chi-square analyses were performed to detect differences in landing techniques between the sexes, court positions, and trajectories when serving, attacking, blocking, and setting. Significant differences (P < 0.05) were found between the sexes for block, set, and spike but not for the jump serve. The frequency of landings on one foot was related to court position and the trajectory of the sets: when spiking faster sets, the players were more likely to use a one-footed landing. The present results should help coaches and physiotherapists to devise appropriate training and prevention programmes, and reveal the need for further detailed biomechanical investigations of the relationships between landings and knee injuries.     

Looking at learning approaches from the angle of student profiles

This study starts with investigating the relation of perceived workload, motivation for learning and working memory capacity (WMC) with students’ approaches to learning. Secondly, this study investigates if differences exist between different student profiles concerning their approach to the learning and the influence of workloads thereon. Results show a relation for workload and motivation but not for WMC. By means of a cluster analysis, three student profiles were identified based on WMC and motivation. Students characterised by high WMC and average motivation scored higher on surface approaches and lower on deep approaches than students with high autonomous motivation. These latter students also score higher on deep approaches than students characterised by low WMC. Finally, it was found that all student profiles responded the same to the influence of workload. In contrast with prior research, deep approaches were higher when the workload was higher.