Context-Sensitive Cognitive and Educational Testing

This article reviews four interrelated approaches to reducing an inequitable gap in cognitive and educational test scores between individuals of a dominant culture and individuals of other cultures or subcultures. These approaches include (a) use of broader measures, (b) performance- and project-based assessments, (c) direct measurement of knowledge and skills relevant to environmental adaptation, and (d) dynamic assessment. It is concluded that when appropriate assessment is done that recognizes students’ diverse cultural and social backgrounds, equity can increase, predictive validity of cognitive and educational tests can increase, and at the same time, racial/ethnic/culture differences can decrease.     

Biomechanical characterization of the Junzuki karate punch: indexes of performance

The aims of this study were: (i) to determine kinematic, kinetic, and electromyographic characteristics of Junzuki karate punch in professional karate athletes; (ii) to identify biomechanical parameters that correlate with punch force and lead to a higher punching performance; (iii) to verify the presence of muscle co-activation in the upper limb, trunk, and lower limb muscles. Data were collected from nine experienced karatekas from the Accademia Italiana Karate e Arti Marziali during the execution of the specific punch. Mean punch forces (181.2?N) delivered to the target, the range of motion of both right and left knees (1.13 and 0.82?rad) and right elbow (1.49?rad) joints, and the angles at impact (knee: 0.81 and 0.91?rad; elbow: 1.19?rad) in the sagittal plane were computed. Furthermore, the trunk rotational angular acceleration (63.1?rad^?s^?2), force related to the lower limbs (550.2 and 425.1?N), and co-activation index for the upper limb (36.1% and 34.7%), trunk (24.5% and 16%), and lower limbs (16.0% and 16.1%) muscles were evaluated bilaterally. Significant positive correlations were found between the punch force and both right and left knee flexion at the instant of impact and right and left leg force. Significant negative correlation was found between the punch force and maximum trunk angular acceleration. Significant differences (p?=?.03) in the co-activation index among the upper limb, trunk, and lower limbs muscles highlighted a rostro-caudal gradient on both body sides. This research could be of use to performers and coaches when considering training preparations.     

Loneliness,personal and social well-being: towards a conceptualization of the effects of cyberbullying / Soledad,bienestar social e individual: hacia una conceptualización de los efectos del cyberbullying

This paper examines the effects of cyberbullying using a mixed method approach, by combining interviews, focus groups and a survey of 7,000 students. In the inductive stage, and following an axial coding analysis, we identified 153 concepts related to conflicts, which were divided into three thematic units to explain the greater impact of cyberbullying: (1) social distance; (2) privacy exposure; and (3) range of the material. The survey concluded that: (1) the victims of bullying and cyberbullying present higher levels of loneliness and lower levels of social well-being compared to non-bullied students, and those who were bullied in both channels presented higher levels of loneliness and lower levels of social well-being than those who were bullied in only one of them; (2) the victims of cyberbullying showed lower levels of individual well-being compared with those who had never been bullied, as with those who suffered face-to-face bullying. This difference was explained by testimonies indicating that most of the cyberbullying was related to intimate content, which has a higher impact on image perception.     

Measuring Spanish orthographic development in private,public and subsidised schools in Chile

The current study has a twofold purpose: first, to determine the reliability of a tool for assessing orthographic development in Spanish; second, to assess differences in students’ performance on the measure across multiple types of primary schools in a large city in Chile. A Spanish developmental spelling inventory that contained words of increasing orthographic difficulty was administered twice to students in first through fifth grades in three types of schools: public, private and partially subsidised. These school types in large part represent varying levels of student socio-economic status because of costs associated with attending them. Results demonstrate that (a) the Spanish spelling inventory is able to reliably measure the development of orthographic knowledge in Spanish, and (b) there is a relationship between school type and student achievement. The authors describe individual cases to highlight the qualitative nature of differential performance for students in greater- or lesser-resourced schools.     

Observing Interprofessional Collaboration: Impact on Attitude and Knowledge Acquisition

Interprofessional collaboration (IPC) in the medical field is an important factor for good clinical outcomes and should be taught as early as in undergraduate medical education. Since implementing IPC training is an organizational challenge, students are often limited in their opportunities to experience real-life IPC. Therefore, an approach where students observe successful IPC activities of role models in an applied anatomical format was proposed. It was studied whether observing IPC activities in undergraduate anatomical education has an impact on both students' attitude toward IPC and on knowledge acquisition. Further, it was examined whether the attitudes and knowledge of students from different medical disciplines were influenced in different ways. Therefore, 75 medical students and thirty-eight physiotherapy students participated in a study with the task of observing a live broadcast of an interprofessional teaching session. Participants were asked about their attitudes toward interprofessional learning, their evaluation of professional responsibilities, and their profession-specific knowledge before and after observing the IPC session. The participants' attitude toward interprofessional learning improved for both groups of students. Moreover, students of physiotherapy adjusted their evaluation of their own and others' professional responsibilities after observing IPC. In both student groups, knowledge increased, in particular, with respect to the field of knowledge in other professions. So, observing IPC can modify students' attitudes and support knowledge acquisition. The implementation of IPC observations provides students from various healthcare disciplines with a clearer impression of professionals' responsibilities and gives learners the opportunity to acquire knowledge from healthcare fields unfamiliar to them.     

Theme-Park Psychology: A Case Study Regarding Human Intelligence and Its Implications for Education

We introduce in this article the construct of theme-park psychology which we define as psychological theory and research drawn only from limited and unrepresentative samples of participants, tasks and situational contexts within the context of worldwide populations. Results obtained from limited populations, tasks, and situational contexts often are inappropriately generalized and then used as a basis for educational policy. In theme-park psychology, easy-to-study populations, tasks, and situational contexts repeatedly may show the same patterns in data, leading to tantalizing generalizations that are nevertheless wrong. We describe studies by ourselves and by others with respect to human intelligence that illustrate our views and that cast doubt on traditional notions.     

Automatic registration of large range datasets with spin-images

Terrestrial laser scanning technique has represented one of the more advances occurred in the last years in the field of data acquisition. Time-of-Flight (TOF) systems provide a fast and reliable tool to measure millions of 3D points allowing a very effective and dense measurement of the surface geometry. Nowadays, the generation of high quality 3D models is a practice applied to different kind of objects: small or medium size artworks, parts of human body, cars, buildings, civil infrastructures (like dams, bridges, plants, etc.) and whole archaeological sites as well. In most cases, in order to capture the whole object geometry a number of single scans need to be acquired from different positions and then stitched together (i.e. registered each other) to generate the full 3D model. The automatization of the registration of multiple scans acquired from a terrestrial laser scanner (TLS) still represents a very attractive research field. The chance to automatically align several point clouds would reduce processing costs in terms of time and human resources. In addition it would allow even non-specialist users to produce 3D models with good quality. This paper contributes to this research area by presenting a method for the automatic registration of very dense point clouds acquired by TLS systems. The proposed solution is an extension to large datasets of an automatic range data registration procedure we developed a few years ago for the modelling of point clouds acquired with close-range laser scanners. Such procedure, based on the spin-images (SIs) algorithm, has been then improved with the introduction of a multi-resolution method that generates a pyramid of spin-images in order to speed up the matching between adjacent scans. The results we present show that this method can be successfully applied for the automatic registration of high density laser scans of complex and large structures of Cultural Heritage.