Effects of manipulating relative and absolute motion information during observational learning of an aiming task

In the visual perception perspective of observational learning, the manipulation of relative and absolute motion information in visual demonstrations optimally directs learners’ search towards appropriate task solutions. We assessed the effect of emphasizing transformational information and removal of structural information using point-light kinematic displays in approximating the model’s relative motion patterns. Participants viewed computer-simulated point-light demonstrations or normal video demonstrations before and intermittently throughout 100 acquisition trials with knowledge of results on an underarm modified-dart aiming task. On the next day, all participants performed 20 retention trials without demonstrations. The kinematics of spatial and temporal coordination and control variables were examined relative to the model’s action, as well as performance scores. The results indicated that approximation of the model’s spatial and temporal coordination and control patterns was achieved after observation of either type of demonstrations. No differences were found in movement outcomes. In a second experiment, the effects of manipulating absolute motion information by slowmotion demonstrations were examined relative to real-time demonstrations. Real-time demonstrations led to a closer approximation to the model’s spatial and temporal coordination patterns and better outcome scores, contradicting predictions that slow-motion displays convey intact relative motion information. We speculate that the effect of visual demonstration speed on action perception and reproduction is a function of task constraints ‐ that is, novelty or familiarity of relative motion of demonstrated activities.     

Instructional practices in reformed undergraduate STEM learning environments: a study of instructor and student behaviors in biology courses

ABSTRACT

Theoretically, organisational culture, instructor training, and learning space design influence how faculty teach STEM courses. Previous studies have used classroom observation protocols to characterise the range of teaching practices in mostly teacher-centered, traditional STEM classrooms. In this study, we examined the classroom behaviour of 13 STEM faculty teaching biology courses in a reformed undergraduate STEM learning environment. Our findings indicate that instructors teaching in this reformed environment guided student learning (58.4?±?1.9%) almost three times more than they presented information (20.0?±?2.2%). Students worked individually or in groups and talked to the whole class (57.1?±?1.8%) 1.5 times more than they received information (35.5?±?1.9%). We found significant positive correlation between ‘instructor presenting’ and ‘students receiving’ information (r?=?0.743, p?=?1.4?×?10^?4) and ‘instructor guiding’ and ‘student working and talking’ in class (r?=?0.605, p?=?7.2?×?10^?5), suggesting that instructors can change their own classroom behaviours and expect concurrent change in their students’ behaviours. Finally, sequencing teaching practices in high active-engagement classrooms showed instructors move and guide student group work and lead whole class discussions before lecturing to students, which could lead to deeper learning of conceptual knowledge. We discuss insights from these findings that have implications for acculturating evidence-based teaching practices in STEM departments.     

Virtual office hours as cyberinfrastructure: the case study of instant messaging

Although out-of-class communication enhances students’ learning experience, students’ use of office hours has been limited. As the learning infrastructures of the social sciences and humanities have undergone a range of changes since the diffusion of digital networks, new opportunities emerge to increase out-of-class communication. Hence, it is important to investigate the role of cyberinfrastructures as valuable alternatives or supplements to existing infrastructures in the learning process. This paper proposes that virtual office hours can be a form of cyberinfrastructure that provides new possibilities for student–faculty interaction. We examine students’ perceptions of instant messaging as a tool for offering virtual office hours and enhancing student–faculty interaction. Students report that instant messaging is a useful tool for virtual office hours because of its convenience, interactivity, and ease of use. While students only made limited use of it when it was actually offered as an alternative to regular office hours, it represents an important new avenue for interaction. We outline reasons for students’ limited use of instant messaging for virtual office hours and discuss a series of barriers and potential solutions.     

Attitudes towards sexuality information for adolescents: what parents should and should not say

The goal of this study was to investigate the attitudes of Colombians with respect to what can and what must not be said to young people of different ages and genders regarding sexuality. A convenience sample of 329 adults, aged 18–64 years, living in Bogotá participated in the study. They were presented with a set of 36 vignettes describing situations in which either a young girl or a young boy seemed to be concerned about sexuality and sexual relationships. Each scenario contained three items of information: the child’s gender, age and the parent’s decision (e.g. not to say anything regarding sexuality). Through cluster analysis, seven qualitatively different sets of attitudes were found. The five most common ones were: (i) it is never appropriate to talk about sexual matters (6%); (ii) delegate this responsibility to the school nurse (4%); (iii) provide incomplete information restricted to the biology of sexuality (11%); (iv) provide comprehensive information but with a recommendation of abstinence (28%); and (v) provide comprehensive information and a recommendation of pre-marital sexual experience (36%). Although it was expected that attitudes would vary as a function of the young person’s gender and age, such variations proved to be limited in their extent.     

Adult perceptions of children with dyslexia in the USA

This study examined adult perceptions of dyslexia among US adults. Participants (n?=?623) answered survey questions pertaining to characteristics, views, and possible causes of DYS. Exploratory factor analysis revealed five distinct factors: (1) psychosocial causes, (2) external causes, (3) biological causes, (4) consequences, and (5) controllability. Three-way ANOVA’s were conducted to determine the effects of ethnicity, gender, and parental status on how DYS was perceived. The results revealed ethnic, gender, and parental status differences. Males endorsed psychosocial causes and external causes more often than females. Those who self-identified as Asian viewed DYS as more controllable in comparison to Whites. Results also revealed a three-way interaction regarding controllability. Understanding the public’s perceptions about developmental disorders helps distinguish true from erroneous beliefs, and understanding differences that may exist in particular groups can help implement targeted actions to improve awareness, care, and interventions for families.     

The effect of performance-oriented funding in higher education: evidence from the staff recruitment budget in Italian higher education

Higher Education - This study, which aims to investigate some potential effects derived from the adoption of performance-oriented funding in the higher education system, is focused on competitive...     

Epistemologies in the Text of Children's Books: Native- and non-Native-authored books

An examination of artifacts provides insights into the goals, practices, and orientations of the persons and cultures who created them. Here, we analyze storybook texts, artifacts that are a part of many children's lives. We examine the stories in books targeted for 4–8-year-old children, contrasting the texts generated by Native American authors versus popular non-Native authors. We focus specifically on the implicit and explicit ‘epistemological orientations’ associated with relations between human beings and the rest of nature. Native authors were significantly more likely than non-Native authors to describe humans and the rest of nature as psychologically close and embedded in relationships. This pattern converges well with evidence from a behavioral task in which we probed Native (from urban inter-tribal and rural communities) and non-Native children's and adults' attention to ecological relations. We discuss the implications of these differences for environmental cognition and science learning.     

Learn before lecture: A strategy that improves learning outcomes in a large introductory biology class

Actively engaging students in lecture has been shown to increase learning gains. To create time for active learning without displacing content we used two strategies for introducing material before class in a large introductory biology course. Four to five slides from 2007/8 were removed from each of three lectures in 2009 and the information introduced in preclass worksheets or narrated PowerPoint videos. In class, time created by shifting lecture material to learn before lecture (LBL) assignments was used to engage students in application of their new knowledge. Learning was evaluated by comparing student performance in 2009 versus 2007/8 on LBL-related question pairs, matched by level and format. The percentage of students who correctly answered five of six LBL-related exam questions was significantly higher (p < 0.001) in 2009 versus 2007/8. The mean increase in performance was 21% across the six LBL-related questions compared with <3% on all non-LBL exam questions. The worksheet and video LBL formats were equally effective based on a cross-over experimental design. These results demonstrate that LBLs combined with interactive exercises can be implemented incrementally and result in significant increases in learning gains in large introductory biology classes.     

Vergleichsarbeiten und schulische Personalentwicklung – Ausmaß und Voraussetzungen der Datennutzung

The introduction of comparative tests in a low-stakes system was carried out in the expectation that the data feedback to schools would act as a stimulus for the development of the schools and the standard of classroom teaching. By contrast with the use of data to develop teaching, the use of data for personnel development has not yet been studied in Germany. On the basis of an on-line survey of head teachers and a paper-and-pencil survey of teaching staff, the study examines for the first time the extent to which comparative test data is used by head teachers for personnel development and as a means to plan in-service training in subject conferences, and what factors influence whether the data is used in this way. Of the head teacher characteristics which were studied (attitude in relation to the perceived usefulness of the data, qualifications, organisation and age of the head teacher), usefulness is the only characteristic which has a positive effect on the use of the data. The use of comparative test data to plan in-service training in subject conferences is positively influenced by data-wise leadership by the head teacher and by collaborative evaluation.     

Faculty training: an unavoidable requirement for approaching more inclusive university classrooms

Adequate policies for faculty training in diversity continue to be pending on the agendas of many universities. This paper presents the recommendations of 44 university students with disabilities not only for adequate faculty training, but also on informing them on both matters of the disability itself and how to respond to the needs derived from it. The data analyzed come from research funded by the Spanish Ministry of Economy and Competiveness ‘University Barriers and Aids Identified by Students with Disabilities’, which has been underway since 2011. A biographical-narrative methodology was used. The university life histories of the students were compiled by making use of in-depth interviews, lifelines and photographs. The conclusions of the study discuss the main results along with other previous studies, and recommendations are made so universities can provide training plans leading to inclusive education and learning.