Developing primary science through IT-INSET

The purpose of the research study was to find out if the use of Information Communication Technology (ICT) could improve the planning, performing and evaluating process within a sequence of six gymnastics lessons, and whether this would then improve the children's technique. The research consisted of a questionnaire given to the 30 children in the class at the end of the six consecutive lessons, an interview with the class teacher prior to the implementation of ICT and again afterwards, and observations. The findings showed that ICT improved the plan, perform and evaluate stages, within gymnastics, and consequently, the children's technique improved.     

Exploring ancestral phenotypes and evolutionary development of the mammalian middle ear based on Early Cretaceous Jehol mammals

We report a new Cretaceous multituberculate mammal with 3D auditory bones preserved. Along with other fossil and extant mammals, the unequivocal auditory bones display features potentially representing ancestral phenotypes of the mammalian middle ear. These phenotypes show that the ectotympanic and the malleus-incus complex changed notably during their retreating from the dentary at various evolutionary stages and suggest convergent evolution of some features to extant mammals. In contrast, the incudomalleolar joint was conservative in having a braced hinge configuration, which narrows the morphological gap between the quadroarticular jaw joint of non-mammalian cynodonts and the incudomalleolar articulations of extant mammals. The saddle-shaped and abutting malleus-incus complexes in therians and monotremes, respectively, could have evolved from the braced hinge joint independently. The evolutionary changes recorded in the Mesozoic mammals are largely consistent with the middle ear morphogenesis during the ontogeny of extant mammals, supporting the relation between evolution and development.     

The effects of teacher-delivered social reinforcement on the task persistent behavior of educable mentally retarded children

The effects of teacher-delivered social reinforcers on the task persistent behavior of children enrolled in an intermediate class for the educable mentally retarded were studied. These children were grouped with a regular fourth grade class during a social studies period in which the study was conducted. The special education children were randomly divided into two groups, with seven children in each group. Using a reversal design, social reinforcers were delivered contingent upon the task persistent behavior of the seven target children. The seven youngsters in the control, or nonreinforcement, group were essentially ignored as they engaged in appropriate task-related behaviors. The results clearly show that increases in the level of task persistent behavior and the administration of social reinforcement were functionally related. The level of task persistent behavior emitted by the control children was not affected by reinforcement delivered to their peers.     

Relative age and maturation selection biases in academy football

ABSTRACT

This study examined the simultaneous effects of relative age and biological maturity status upon player selection in an English professional soccer academy. A total of 202 players from the U9 to U16 age groups, over an eight-year period (total of 566 observations), had their relative age (birth quarter) and biological maturity (categorised as late, on-time or early maturing based upon the Khamis-Roche method of percentage of predicted adult height at time of observation) recorded. Players born in the first birth quarter of the year (54.8%) were over-represented across all age groups. A selection bias towards players advanced in maturity status for chronological age emerged in U12 players and increased with age; 0% of players in the U15 and U16 age group were categorised as late maturing. A clear maturity selection bias for early maturing players was, however, only apparent when the least conservative criterion for estimating maturity status was applied (53.8% early and 1.9% late maturing in the U16 age group). Professional football academies need to recognise relative age and maturation as independent constructs that exist and operate independently. Thus, separate strategies should perhaps be designed to address the respective selection biases, to better identify, retain and develop players.     

Development of perfectionism in junior athletes: Examination of actual and perceived parental perfectionism

ABSTRACT

Initial research suggests that parental perfectionism is central to the development of athlete perfectionism. However, it is unclear whether perceived or actual parental perfectionism is most important. The present study aimed to address this issue in two ways. First, we re-examined the predictive ability of actual versus perceived parental perfectionism on athlete perfectionism. Second, for the first time, we tested whether perceived parental perfectionism mediated the relationship between actual parental perfectionism and athlete perfectionism. A sample of 150 junior athletes and their parents completed measures of perfectionism (perfectionistic strivings and perfectionistic concerns). Junior athletes completed two measures, one of their own perfectionism and one of perceptions of their parents’ perfectionism. Parents completed one measure of their own perfectionism. Regression analyses showed that perceived parental perfectionism predicted athlete perfectionism over and above actual parental perfectionism. Mediation analyses provided support for our proposed model. Overall, the findings suggest that both actual and perceived parental perfectionism are important in the development of perfectionism in junior athletes.     

Relationships between attributions and emotions in a laboratory-based sporting contest.

A series of one-vs-one fencing contests was staged in a laboratory to investigate the nature and extent of relationships between attributions and emotions. The experimenter had full control over the outcome and created a substantial defeat for one subject. A pre-contest measure of the importance of winning was obtained via a questionnaire. After the contest, questionnaire ratings of 12 attributions for outcome (winning/losing), 28 adjectives describing emotions, and a rating of satisfaction with performance were elicited. Factor analysis of emotion ratings revealed three factors of 'positive self-esteem', 'depression-frustration' and 'intropunitiveness'. Relationships between emotion factors and attributions involved primarily internal attributions. Multiple regression analyses showed that positive self-esteem for winners was best predicted by performance satisfaction, outcome importance and attributions, whereas depression-frustration was predicted only by attributions. For losers, positive self-esteem was predicted from attributions. These results suggest that attributions and emotions are related after sports competition but that non-attribution variables are also important predictors of sport-related emotion.     

Science and report writing

In recent years Australian primary schools have adopted an across-the-curriculum approach to writing. However, relatively little research has been conducted in the area of primary science. This paper reports the result of a small scale collaborative study involving a Year 2 and a Year 5 class, and their classroom teacher, which used science activities as the basis for developing report-writing skills using a framework consisting of three focus questions. Students in both classes learned to use the framework in one term and it was found that it improved the quality of reports. Specialisations: science and technology curriculum development, secondary and primary teacher education in agriculture, science and environmental education. Specialisations: cognition and curriculum, early childhood and primary teacher education in science and social education.