Decreasing the proportion of self-control trials during the acquisition period does not compromise the learning advantages in a self-controlled context

The present experiment examined the learning effects of participants self-controlling their receipt of knowledge of results (KR) on all or half of their acquisition trials (50%). For participants who were provided 50% self-control, the first half of their acquisition period consisted of receiving KR on all trials, or according to a faded-KR schedule. Participants practiced a sequential timing task. The results showed that independent of practice condition, participants who self-controlled their KR during the acquisition period demonstrated superior performance compared to the respective yoked conditions in the retention and transfer portion of the experiment. These results extend previous research by suggesting that decreasing the proportion of self-control trials does not compromise learning in a self-controlled context.     

Students’ Research-Informed Socio-scientific Activism: Re/Visions for a Sustainable Future

In many educational contexts throughout the world, increasing focus has been placed on socio-scientific issues; that is, disagreements about potential personal, social and/or environmental problems associated with fields of science and technology. Some suggest (as do we) that many of these potential problems, such as those associated with climate change, are so serious that education needs to be oriented towards encouraging and enabling students to become citizen activists, ready and willing to take personal and social actions to reduce risks associated with the issues. Towards this outcome, teachers we studied encouraged and enabled students to direct open-ended primary (e.g., correlational studies), as well as secondary (e.g., internet searches), research as sources of motivation and direction for their activist projects. In this paper, we concluded, based on constant comparative analyses of qualitative data, that school students’ tendencies towards socio-political activism appeared to depend on myriad, possibly interacting, factors. We focused, though, on curriculum policy statements, school culture, teacher characteristics and student-generated research findings. Our conclusions may be useful to those promoting education for sustainability, generally, and, more specifically, to those encouraging activism on such issues informed by student-led research.     

Role of exteroceptive background context in taste-aversion conditioning and extinction

In two experiments, saccharin (CS) and lithium chloride (US) were paired in a context consisting of specific visual, auditory, tactual, and olfactory cues. The saccharin aversion was then extinguished in a context free from conditioning-context cues. Later, saccharin preference tests were given in the presence and absence of these cues. The results indicated that the background cues of the conditioning trial controlled the amount of saccharin drunk on extinction trials, and, furthermore, that extinction of the taste aversion was context specific; i.e., groups given extinction trials in a different (from conditioning) context retained their saccharin aversion in the conditioning context only. The results indicate an important role played by the exteroceptive context in taste-aversion conditioning.     

The distance-time relationship over a century of running Olympic performances: A limit on the critical speed concept

We analyse the evolution of the slope (critical speed) and the y-intercept (anaerobic distance capacity) of the linear distance-time relationship over a century of Olympic running performances. The distance-time relationship of each Olympic Games (1920-2004) was plotted using the performances in the 800-, 1500- and 5000-m track events. Values for critical speed and anaerobic distance capacity were determined by linear modelling. Mean performances for the 800, 1500 and 5000 m were 104.9 +/- 1.5 s (1.4%), 217.2 +/- 2.8 s (1.3%) and 808.9 +/- 18.4 s (2.3%), respectively. Critical speed improved during the first three-quarters of the twentieth century to reach a plateau in 1984. This is in accordance with the literature (Peronnet & Thibault, 1989) and suggests that "human aerobic endurance" has improved within the century (+13.4%) and tends to stabilize. Anaerobic distance capacity was highly variable over the century (coefficient of variation = 9.4%) and did not show a linear improvement over the years as has previously been suggested (Peronnet & Thibault, 1989). This could be due to an artefact in the application of the two-parameter model to only three Olympic performances. A limitation to the use of this linear mathematical model to fit physiological data may have been demonstrated.     

Demonstration of Classroom Survival Skills in Kindergarten: A five-year transition study of children with intellectual disabilities

Thirty-three children with a range of intellectual disabilities who participated in a transition program embedded within a model inclusive preschool program were enrolled in mainstream kindergarten classes from 1995 to 1999. In the second of four kindergarten terms the classroom survival skills, on-task behaviour across a range of activities and following teacher directions, were measured by observing the children with intellectual disabilities and a typical peer, nominated by each classroom teacher. While the teacher-nominated peers outperformed the students with intellectual disabilities in total time-on-task, the level achieved by the children with intellectual disabilities was still at the lower end of what is regarded as average. There was no statistical difference between the two groups in on-task behaviour during independent activities but the difference between the groups during whole class instruction was highly significant. This may have implications for the selection of strategies for preparing children for transition and the adaptation of teaching practices. On-task behaviour did not vary a great deal across level of intellectual disability but gender may have been a contributing factor. There appeared to be a greater difference between students with and without disabilities in responding to teacher directions. The results of the present study suggest that successful demonstration of these critical skills requires more appropriate teacher preparation and intervention at the kindergarten level.     

The Constables and the ‘Garage Girl’

In the summer of 1928, the arrest on a disorder charge of a young woman in north London who gave her name as Helene Adele led to a press sensation after she claimed that the officers had falsely accused her in order to discredit her claim that one of them had sexually assaulted her. The constables were ultimately prosecuted, convicted and discharged from the Metropolitan Police. This article considers the Adele case in the context of intense concerns about the possible abuse of police powers—particularly in cases involving women—in the late 1920s. Adele was catapulted onto the front pages of Britain's sensationalist press: her serialised memoir appeared in a newspaper and was reprinted in a women's magazine. However, her case was more than just a tabloid spectacle. Contributing to historians' reconsideration of the sensationalist inter-war press, this article shows how the coverage of the case fit into the press's interest in young working-class women's lifestyles and sexuality, highlighting how ‘human interest’ journalism could be intermixed with social critique.     

Challenges in embedding numeracy throughout the curriculum in three Queensland secondary schools

The Australian Curriculum identified seven General Capabilities, including numeracy, to be embedded in all learning areas. However, it has been left to individual schools to manage this. Whilst there is a growing body of literature about pedagogies that embed numeracy in various learning areas, there are few studies from the management perspective. A social constructivist perspective and a multiple case study approach were used to explore the actions of school managers and mathematics teachers in three Queensland secondary schools, in order to investigate how they meet the Australian Curriculum requirement to embed numeracy throughout the curriculum. The study found a lack of coordinated cross-curricular approaches to numeracy in any of the schools studied. It illustrates the difficulties that arise when teachers do not share the Australian Curriculum cross-curricular vision of numeracy. Schools and curriculum authorities have not acknowledged the challenges for teachers in implementing cross-curricular numeracy, which include: limited understanding of numeracy; a lack of commitment; and inadequate skills. Successful embedding of numeracy in all learning areas requires: the commitment and support of school leaders, a review of school curriculum documents and pedagogical practices, professional development of teachers, and adequate funding to support these activities.