Initial Validation of the Teacher-Created Empowering and Disempowering Motivational Climate Questionnaire in Physical Education

Purpose: Guided by Duda’s hierarchical conceptualization of the motivational climate that draws from self-determination and achievement goal theories, this study provides initial evidence of the psychometric properties of the Empowering and Disempowering Motivational Climate Questionnaire in physical education (EDMCQ-PE). Method: Questionnaire based with two samples of Welsh secondary school pupils. Results: Exploratory structural equation modeling provided a better fit of the data to the hypothesized model than confirmatory factor analysis. Moreover, a two-factor composite (i.e., empowering and disempowering) lower-order model provided an acceptable fit and clear parameter estimates. This two-factor model also demonstrated scalar gender measurement invariance. Discussion: The evidence from this study suggests the EDMCQ-PE is a promising scale for the assessment of secondary school pupils’ perceptions of the empowering and disempowering features of the motivational climate created by their physical education teachers. Conclusion: Moving forward, the statistical approach employed in this paper can inform future studies that develop questionnaire methodology in physical education and from an applied perspective; the EDMCQ-PE can be used by researchers and teachers to assess the motivational climate in PE and help inform the pedagogy underpinning teachers’ classes

Promoting a more empowering motivational climate in physical education:a mixed-methods study on the impact of a theory-based professional development programme

This study examined the effects of the delivery of a school-tailored Empowering PE™ workshop and subsequent Professional Development Programme (PDP) using Community of Practice principles within one secondary school Physical Education (PE) department. Employing a mixed-methods longitudinal design, the research assessed PE teachers' understanding of motivation and motivational strategies, Senior Leadership Team perceptions of the PDP's impact, and pupils' motivation and engagement in PE. The intervention pulled from Achievement Goal Theory and Self-Determination Theory, adopting Duda's theoretically integrated conceptualization of empowering and disempowering motivational climates. Qualitative data from interviews, focus groups, and reflections revealed significant perceived benefits for teachers' understanding and implementation of motivational strategies, as well as perceived improvements in pupil engagement and motivation. Quantitative data (147 Year 9 pupils aged 13–14 years, M = 13.6, SD = 0.4; 81 boys, 64 girls) revealed no significant differences over time in perceptions of the motivational climate and their motivation to engage in PE. Overall, this study contributes to the growing body of evidence supporting the benefits of creating empowering environments in physical education. The findings however highlight the complexity of implementing and assessing the effects of motivational climate interventions in PE settings and underscore the importance of sustained, theory-informed professional development for teachers. Areas for future research on interventions (and testing their effectiveness) to optimize the motivation climate in PE, pupil motivation and teacher professional development are provided

Examining the mediating role of motivation in the relationship between multidimensional perfectionism and well- and ill-being in vocational dancers.

: Perfectionism is considered to be an important personality factor within the dance context given the high number of dancers whose psychological health is influenced by its consequences. The relationship between perfectionism and dancers' well- and ill-being can be mediated by a range of variables. The present study explores the role of forms of motivation (i.e., autonomous motivation, controlled motivation and amotivation) as mediators in the relationship between perfectionism (i.e., self-oriented and socially prescribed) and an indicator of well-being (i.e., subjective vitality) and ill-being (i.e., burnout). Participants of the study were 146 male and female Spanish vocational dancers aged between 12 and 26 years old (Mean age = 15.40 ± 2.96) who completed questionnaires measuring the variables of interest. Results of multiple mediator regression analyses showed that amotivation mediated the relationships between self-oriented and socially prescribed perfectionism with burnout and subjective vitality. Self-oriented perfectionism was negatively correlated, and socially prescribed perfectionism positively associated with amotivation. Amotivation of dancers was a positive predictor of burnout and a negative predictor of subjective vitality. Overall, the findings corroborate the importance of amotivation in the relationship between perfectionism dimensions and well-being and ill-being in dancers

Origin of the Spin-Orbital Liquid State in a Nearly J=0 Iridate Ba3ZnIr2O9

We show using detailed magnetic and thermodynamic studies and theoretical calculations that the ground state of Ba3ZnIr2O9 is a realization of a novel spin-orbital liquid state. Our results reveal that Ba3ZnIr2O9 with Ir5+ (5d(4)) ions and strong spin-orbit coupling (SOC) arrives very close to the elusive J = 0 state but each Ir ion still possesses a weak moment. Ab initio density functional calculations indicate that this moment is developed due to superexchange, mediated by a strong intradimer hopping mechanism. While the Ir spins within the structural Ir2O9 dimer are expected to form a spin-orbit singlet state (SOS) with no resultant moment, substantial frustration arising from interdimer exchange interactions induce quantum fluctuations in these possible SOS states favoring a spin-orbital liquid phase down to at least 100 mK

Microscale characterization of prostate biopsies tissues using optical coherence elastography and second harmonic generation imaging

© 2018 USCAP, Inc All rights reserved. Photonics, especially optical coherence elastography (OCE) and second harmonic generation (SHG) imaging are novel high-resolution imaging modalities for characterization of biological tissues. Following our preliminary experience, we hypothesized that OCE and SHG imaging would delineate the microstructure of prostate tissue and aid in distinguishing cancer from the normal benign prostatic tissue. Furthermore, these approaches may assist in characterization of the grade of cancer, as well. In this study, we confirmed a high diagnostic accuracy of OCE and SHG imaging in the detection and characterization of prostate cancer for a large set of biopsy tissues obtained from men suspected to have prostate cancer using transrectal ultrasound (TRUS). The two techniques and methods described here are complementary, one depicts the stiffness of tissues and the other illustrates the orientation of collagen structure around the cancerous lesions. The results showed that stiffness of cancer tissue was ∼57.63% higher than that of benign tissue (Young's modulus of 698.43±125.29 kPa for cancerous tissue vs 443.07±88.95 kPa for benign tissue with OCE. Using histology as a reference standard and 600 kPa as a cut-off threshold, the data analysis showed sensitivity and specificity of 89.6 and 99.8%, respectively. Corresponding positive and negative predictive values were 99.5 and 94.6%, respectively. There was a significant difference noticed in terms of Young's modulus for different Gleason scores estimated by OCE (P-value<0.05). For SHG, distinct patterns of collagen distribution were seen for different Gleason grade disease with computed quantification employing a ratio of anisotropic to isotropic (A:I ratio) and this correlated with disease aggressiveness

Perfectionism and Burnout in Canoe Polo and Kayak Slalom Athletes: The Mediating Influence of Validation and Growth-seeking

Research has implicated perfectionism in the development of athlete burnout (Gould et al., 1996). One potential explanation for this relationship is that some forms of perfectionism are associated with a desire for validation and psychological over-investment in participation. The present investigation examined the relationship between self-oriented and socially prescribed perfectionism and burnout in canoe polo and kayak slalom athletes, and whether these relationships are mediated by validation and growth-seeking. One-hundred and fifty canoe polo and kayak slalom athletes (M age = 26.05 years, SD = 9.57 years) recruited from the top two divisions in the UK completed Flett and Hewitt’s (1991) Multidimensional Perfectionism Scale, Dykman’s (1998) Goal Orientation Inventory, and Raedeke and Smith’s (2001) Athlete Burnout Questionnaire. Analyses supported the mediating role of validation-seeking in the relationship between socially prescribed perfectionism and burnout. However, while bivariate correlations indicated that self-oriented perfectionism was positively related to both validation and growth-seeking, neither mediated the selforiented perfectionism-burnout relationship. Based on these findings, validation-seeking may be an important psychological process in the development of burnout for athletes exhibiting the characteristics of socially prescribed perfectionism. Furthermore, the association between self-oriented perfectionism and growth-seeking may explain why this form of perfectionism may be unrelated, or inversely related, to athlete burnout

The FAIR Guiding Principles for scientific data management and stewardship

There is an urgent need to improve the infrastructure supporting the reuse of scholarly data. A diverse set of stakeholders—representing academia, industry, funding agencies, and scholarly publishers—have come together to design and jointly endorse a concise and measureable set of principles that we refer to as the FAIR Data Principles. The intent is that these may act as a guideline for those wishing to enhance the reusability of their data holdings. Distinct from peer initiatives that focus on the human scholar, the FAIR Principles put specific emphasis on enhancing the ability of machines to automatically find and use the data, in addition to supporting its reuse by individuals. This Comment is the first formal publication of the FAIR Principles, and includes the rationale behind them, and some exemplar implementations in the community

Development and Initial Validation of the Perfect Performance Scale for Sport (PPS-S)

Valid and reliable instruments are required in order to study perfectionism appropriately. With this in mind, three studies will be presented that describe the development and initial validation of a new instrument designed to measure multidimensional performance perfectionism for use in sport (Perfect Performance Scale-Sport, PPS-S). The instrument is based on Hewitt and Flett’s (1991) model of perfectionism and includes self-oriented, socially prescribed, and other-oriented performance perfectionism. The new dimensions encapsulate the features of Hewitt and Flett’s dimensions but are focused on athletic performance, rather than life generally. The three studies outline item generation and refinement, exploratory, confirmatory and exploratory-confirmatory examination of factor structure, and initial assessment of construct validity. The findings of the three studies provide initial evidence for the reliability and validity of the PPS-S and suggest that the instrument is worthy of further scrutiny and validation

Paneth cell - rich regions separated by a cluster of Lgr5+ cells initiate crypt fission in the intestinal stem cell niche

The crypts of the intestinal epithelium house the stem cells that ensure the continual renewal of the epithelial cells that line the intestinal tract. Crypt number increases by a process called crypt fission, the division of a single crypt into two daughter crypts. Fission drives normal tissue growth and maintenance. Correspondingly, it becomes less frequent in adulthood. Importantly, fission is reactivated to drive adenoma growth. The mechanisms governing fission are poorly understood. However, only by knowing how normal fission operates can cancer-associated changes be elucidated. We studied normal fission in tissue in three dimensions using high-resolution imaging and used intestinal organoids to identify underlying mechanisms. We discovered that both the number and relative position of Paneth cells and Lgr5+ cells are important for fission. Furthermore, the higher stiffness and increased adhesion of Paneth cells are involved in determining the site of fission. Formation of a cluster of Lgr5+ cells between at least two Paneth-cell-rich domains establishes the site for the upward invagination that initiates fission

Examining the mediating role of motivation in the relationships between teacher-created motivational climates and quality of engagement in secondary school physical education

Grounded in Duda’s integrated model of the motivational climate, the current study examined the hypothesized mediating role of motivation quality in the relationships between empowering and disempowering teacher-created motivational climates and indicators of quality engagement in secondary school physical education (PE). The hypothesised model was tested cross-sectionally and longitudinally in two separate samples of students. Data were collected via questionnaires measuring the motivational climate, autonomous and controlled motivation and indicators of engagement (enjoyment, concentration and boredom). Cross sectional data collected from 832 students (439 males and 386 females) while longitudinal data stemmed 299 students (166 males and 163 females). All students were from schools in Wales aged between 12 and 15 years. Structural equation modelling was used to test the hypothesised model and the mediating role of autonomous and controlled motivation. The hypothesised model was supported cross-sectionally and longitudinally, indicating that empowering climates positively predicted students’ autonomous motivation for PE, whereas disempowering motivational climates positively predicted controlled motivation. In turn, autonomous and controlled motivation positively and negatively predicted indictors of students’ engagement in PE in the hypothesised directions. Analyses revealed relationships between empowering and disempowering climates with enjoyment, concentration and boredom were indirect via autonomous and controlled motivation. In summary, results support the role of autonomous and controlled motivation in the differential relationships between empowering and disempowering motivational climates and indicators of the quality of student engagement. The findings suggest that targeted professional learning opportunities for PE teachers are needed which facilitate more empowering climates and reducing disempowering strategies