A Prelongitudinal Test of Motor Stage Theory

Abstract

A test of motor stage theory was conducted to screen cross-sectionally for the existence of “horizontal structure” among motor sequences within four movement components of overarm throwing and overarm striking for force. A total of 58 male subjects were filmed performing five trials of each task. Comparisons were made between movement component sequence levels as assessed by Roberton's Component Category Checklist for the Overarm Throw and Langendorfer's Component Category Checklist for Overarm Striking. Results indicated that longitudinal study of sequences within the components of trunk, humerus, forearm-racquet actions was warranted and that intertask comparisons of motor sequences were best represented by combinations of stage models proposed by Wohlwill (1973). The observed movement commonalities in the present data were consistent with constructs in both Piagetian developmental stage theory and Schmidt's schema theory in motor control and learning.     

Cricket fast bowling performance and technique and the influence of selected physical factors during an 8-over spell

The aims of this study were to determine the influence of an 8-over spell on cricket fast bowling technique and performance (speed and accuracy), and to establish the relationship of selected physical capacities with technique and performance during an 8-over spell. Fourteen first-grade fast bowlers with a mean age of 23 years participated in the study. Physical capacities assessed were abdominal strength, trunk stability, selected girth and skinfold measures. During the delivery stride, bowlers were filmed from an overhead and lateral perspective (50 Hz) to obtain two-dimensional data for transverse plane shoulder alignment and sagittal plane knee joint angle respectively. Ball speed was measured by a radar gun and accuracy by the impact point of each delivery on a zoned scoring target at the batter's stumps. Shoulder counter-rotation did not change significantly between overs 2 and 8 for all bowlers, but was significantly related to a more front-on shoulder orientation at back foot impact. When the front-on fast bowlers ( n = 5) were isolated for analysis, shoulder counter-rotation increased significantly between overs 2 and 8. Ball speed remained constant while accuracy showed some non-significant variation during the spell. Shoulder counter-rotation was significantly related to accuracy scores during the second half of the 8-over spell. Chest girth and composition and body composition were significantly related to ball release speed at various times during the spell.     

Predicting continued use of online teacher professional development and the influence of social presence and sociability

This study examined how a well‐established Technology Acceptance Model (TAM) could predict teachers' intentions to continue using e‐learning for professional development based on perceived ease of use and usefulness. Although studies have shown social interactions are important to teachers, no study has analyzed the mediating influence of social presence and sociability within e‐learning professional development. Therefore, the original TAM was expanded to encompass user perceptions of social presence and sociability. Structural equation modeling was used to measure the mediating affects on their intention to continue using e‐learning for their professional development. The results indicate that the expanded hypothesized model was a good predictor of continuance intention. Perceived ease of use, perceived usefulness and social presence were found to be significant determinants of teachers' intent to continue using e‐learning to meet their future professional development needs. The results have implications for educational leaders, designers and facilitators who want to promote teacher online professional development and embed e‐learning conditions that will be readily embraced by classroom teachers.     

Wellness Model of Supervision: A Comparative Analysis

This quasi‐experimental study compared the effectiveness of the Wellness Model of Supervision (WELMS; Lenz & Smith, 2010 ) with alternative supervision models for developing wellness constructs, total personal wellness, and helping skills among counselors‐in‐training. Participants were 32 master's‐level counseling students completing their internship requirements in a counseling program accredited by the Council for Accreditation of Counseling and Related Educational Programs. Results of a split plot analysis of variance indicated that participants in the WELMS condition increased their personal definitions of wellness and total wellness while developing their counseling skills at a similar level when compared with participants receiving other models of supervision.     

Epistemic Beliefs and Conceptual Understanding in Biotechnology: A Case Study

The purpose of this investigation was to explore students’ epistemic beliefs and conceptual understanding of biotechnology. Epistemic beliefs can influence reasoning, how individuals evaluate information, and informed decision making abilities. These skills are important for an informed citizenry that will participate in debates regarding areas in science such as biotechnology. We report on an in-depth case study analysis of three undergraduate, non-science majors in a biotechnology course designed for non-biochemistry majors. We selected participants who performed above average and below average on the first in-class exam. Data from multiple sources—interviews, exams, and a concept instrument—were used to construct (a) individual profiles and (b) a cross-case analysis of our participants’ conceptual development and epistemic beliefs from two different theoretical perspectives—Women’s Ways of Knowing and the Reflective Judgment Model. Two independent trained researchers coded all case records independently for both theoretical perspectives, with resultant initial Cohen’s kappa values above .715 (substantial agreement), and then reached consensus on the codes. Results indicate that a student with more sophisticated epistemology demonstrated greater conceptual understandings at the end of the course than a student with less sophisticated epistemology, even though the latter performed higher initially. Also a student with a less sophisticated epistemology and low initial conceptual performance does not demonstrate gains in their overall conceptual understanding. Results suggest the need for instructional interventions fostering epistemological development of learners in order to facilitate their conceptual growth.     

Career effects of occupation-related vocational education: Evidence from the military's internal labor market

Prior research on the labor market success of secondary vocational education has produced mixed results, with several studies finding wage gains only for individuals who work in training-related occupations. We contribute to this debate by focusing on a single occupation and organization and by comparing the careers of employees with and without occupation-related training in high school. We use longitudinal data on the careers of military recruits who completed high school Junior Reserve Officers’ Training Corps (JROTC), a military science program that has features of a vocational training and school-to-work program. We find that the occupation-specific training received via JROTC reduces early turnover and improves long-run job stability for those who choose military jobs, suggesting that an important effect of vocational training is to improve job match quality. We also find that promotion rates for vocational graduates are similar to their peers, suggesting that vocational education in general works by improving occupational sorting.     

Understanding and defining cognitive style and learning style: a Delphi study in the context of educational psychology

This report outlines the findings from a Delphi study designed to establish consensus on the definitions of cognitive style and learning style amongst an international style researcher community. The study yields long-needed definitions for each construct that reflect high levels of agreement. In a field that has been criticised for a bewildering array of definitions and a proliferation of terms and concepts, this study represents an important step to address confusion in the meaning of the two terms. New researchers interested in styles are encouraged to draw on these definitions when developing new research agendas aimed at deepening our understanding of style as a core construct in educational psychology.     

Practicalising theoretical knowledge in student teachers' professional learning in initial teacher education

This paper reports the findings collected from a four year longitudinal study aiming to investigate the professional learning of student-teachers in Bachelor of Education programmes. Four case studies which suggest a typology of ways of practicalising theoretical knowledge with one extreme as the testing out of teaching approaches mainly to find out their practicality in the school context to the other extreme whereby the student-teacher sought to work out a schema or personal theory were identified. Influences from the campus-based and the field-based components of the teacher education programme are drawn. The paper ends with implications for initial teacher education.     

Poverty reduction through entrepreneurship: Microcredit,learning and ambivalence amongst women in urban Tanzania

Microcredit strategies combine the logic of business, progressive approaches to learning from experience and the key aim to reduce poverty, especially amongst women. The focus in such interventions on the independent, entrepreneurial citizen suggests not only new ways to generate economic growth and sustainable development, but an important recalibration of the repressive social relations thought to be at the root of women's persistent ‘under-development’. This article explores women's experiences of their roles as entrepreneurs, and reflects on how the learning processes and outcomes associated with microcredit schemes ‘shape the self’, often in quite unpredictable ways. The article is based on an ethnographic study of disadvantaged women in Dar es Salaam, and follows them as they participate in NGO-based training schemes, ‘practise’ entrepreneurship in a range of income-generating settings, and negotiate the consequences of the new subjectivities on which the independent, entrepreneurial citizen is based. Like many microcredit programmes, the majority of women in the study were full time housewives before joining the scheme. Others had left their jobs following retrenchment, prejudice or gender discrimination. In all cases, they started their own businesses with little or no business experience or education. Whilst some appear to have embraced the new opportunities, others have struggled. In all cases, microcredit and the associated learning processes produced contradictory and ambivalent feelings of success and failure, hope and disappointment, progress and exclusion. The article explores these ambivalences in order to critique development initiatives that are based on universal notions of autonomy and self-determination in contexts shaped by dependence and structural inequality.