Muscle Soreness Following Resistance Exercise With and Without Eccentric Contractions     

William C. Byrnes  Priscilla M. Clarkson  Frank I. Katch 《Research quarterly for exercise and sport》2013,84(3):283-285

The present study reported on translating the Exercise Identity Scale (EIS: Anderson &; Cychosz, 1994) into Greek and examining its psychometric properties and cross-cultural validity based on U.S. individuals' EIS responses. Using four samples comprising 33, 103, and 647 Greek individuals, including exercisers and nonexercisers, and a similar sample comprising 800 U.S. individuals, the concurrent validity, factor structure, internal reliability, test-retest reliability, external validity, gender invariance, and cross-cultural validity of the EIS responses were examined using confirmatory factor analytical procedures. The results supported the concurrent validity, an adequate unidimensional factor structure for the translated EIS and the internal reliability and test-retest reliability over a 6-week interval. Further, cross-gender configural, partial metric, partial strong factorial, and partial strict factorial invariance and cross-cultural configural and partial metric invariance supported the cross-cultural equivalence of the EIS versions. Moreover, the external validity of the translated EIS responses was also supported. Overall, the findings supported the validity of the exercise identity construct outside North American boundaries and the EIS items' equivalence, providing initial evidence for its cross-cultural applicability.  相似文献   

Team-Referent Attributions Among Sport Performers     

Iain Greenlees  Andrew Lane  Richard Thelwell  Tim Holder  Gina Hobson 《Research quarterly for exercise and sport》2013,84(4):477-487

Abstract

The aim of this study was to develop and validate a team-referent attribution scale. Conducted over three studies, Study 1 modified items from McAuley, Duncan, and Russell's (1992) Causal Dimension Scale II by rewording items to reflect team attributions and adding one item per factor. This led to the development of a 16-item scale (Causal Dimension Scale-T, CDS-T). Study 2 tested competing models of attribution theory among a sample of 433 team sport players. Confirmatory factor analysis indicated strongest support for a four-factor model (robust comparative fit index = .961; root mean squared error of approximation = .054). Study 3 tested the predictive validity of the scale among a sample of 201 team players. Results indicated that winners reported more internal and stable attributions than losers. Further, performances perceived as successful were associated with stable attributions. The results of the study, therefore, suggest that the CDS-T provides a valid measure of team-referent attributions in sport.  相似文献   

Coaching competency and satisfaction with the coach: A multi-level structural equation model     

Nicholas D. Myers  Mark R. Beauchamp  Melissa A. Chase 《Journal of sports sciences》2013,31(4):411-422

Abstract

The purpose of this initial predictive validity study was to determine the ability of measures derived from the Athletes' Perceptions of Coaching Competency Scale II – High School Teams (APCCS II-HST) to predict satisfaction with the head coach. Specification of the statistical model was informed by the mediational model of coach–athlete interactions. The technical quality of the satisfaction measure was evaluated before testing the predictive validity of the coaching competency measures. Data were collected from athletes of seven sports. Athlete observations (N = 748) were clustered within teams (G = 74). Multi-group confirmatory factor analyses (CFA) provided evidence for factorial invariance of a reduced version of the satisfaction measure by athlete gender. Multi-level CFA provided evidence of model–data consistency for a reduced version of the satisfaction measure. Multi-level structural equation modelling provided evidence for the ability of latent coaching competency to positively predict latent satisfaction at both the athlete level (technique competency and motivation competency) and the team level (coaching competency) and for close model–data fit. Implications of this study include: that the APCCS II-HST should be viewed as a replacement for the Coaching Competency Scale when the intended population is appropriate; a preliminary multi-level measurement model for satisfaction with one's coach that should be considered as a potential starting point in subsequent studies; and empirical support for a key relationship proposed in the mediational model of coach–athlete interactions.  相似文献   

Factor Structure and Measurement Invariance of a 10-Item Decisional Balance Scale: Longitudinal and Subgroup Examination Within an Adult Diabetic Sample     

Michael A. Pickering  Ronald C. Plotnikoff 《Measurement in physical education and exercise science》2013,17(4):206-226

This study explores the longitudinal and subgroup measurement properties of a 10-item, physical activity decisional balance scale, previously published by Plotnikoff, Blanchard, Hotz, and Rhodes (2001 Plotnikoff, R. C., Blanchard, C., Hotz, S. B. and Rhodes, R. 2001. Validation of the decisional balance scales in the exercise domain from the Transtheoretical Model: A longitudinal test. Measurement in Physical Education and Exercise Science, 5: 191–206. [Taylor & Francis Online] , [Google Scholar]), within a diabetic sample of Canadian adults. Results indicated that a three-factor measurement model consistently improved model fit compared to the previously published two-factor model. Evidence of configural, metric, and scalar measurement invariance across time and among subgroups suggests that the 10-item decisional balance scale is appropriate for investigating associative relationships with other constructs and for comparing group means of the pros and cons subscales among a variety of diabetic population subgroups.  相似文献   

Factorial Validity and Reliability of the Curricular Goals in Physical Education Questionnaire     

Nelli Lyyra  Esko Leskinen  Pilvikki Heikinaro-Johansson 《Measurement in physical education and exercise science》2013,17(2):69-79

This study aimed to examine the validity and reliability of an instrument designed to measure student perceptions of curricular goals in physical education, the Curricular Goals in Physical Education Questionnaire. Participants were 879 Finnish students from grades 7 to 9 (412 girls, 467 boys; mean age 13.81). An exploratory factor analysis was performed on Sample 1 (n = 287), revealing a four-factor solution and suggesting that factor structure be cross-validated with confirmatory factor analysis in Sample 2 (n = 592). Confirmatory factor analysis demonstrated an acceptable fit and supported the four-factor model. Tests for gender invariance supported configural, metric, and scalar invariance. Analyses of factor mean differences indicated that girls attributed more importance than boys to physical education’s health-related goals, social and emotional learning, and motor skill development. This study confirmed the validity of the Curricular Goals in Physical Education Questionnaire to assess student perspectives on curricular goals across gender. In order to improve factor structure the authors suggest the addition of an item measuring skill acquisition to future versions of the instrument.  相似文献   

Form Invariance, Noether and Lie Symmetry of Non-conservative Hamiltonian Systems in Phase Space     

傅景礼陈立群  谢凤萍 《上海大学学报(英文版)》2004,8(3):252-257

For the non-conservative holonomic Hamiltonian systems in phase space, the definition and criteria of the form invariance of the generalized Hamilton canonical equations were given. The relations among the form invariance, Noether symmetry and Lie symmetry were studied. The theory of the form invariance for the conservative holonomical systems was worked out. An example was given to illustrate the results.  相似文献   

Evaluation of True Criterion Validity for Unidimensional Multicomponent Measuring Instruments in Longitudinal Studies     

Tenko Raykov  George A. Marcoulides 《Structural equation modeling》2017,24(4):599-608

Longitudinal studies offer unique opportunities to identify the specificity variance in the components of a psychometric scale that is administered repeatedly. This article discusses a procedure for evaluation of the relationship between true scale scores and criterion variables uncorrelated with measurement errors in longitudinally presented measures comprising unidimensional multicomponent instruments. The approach provides point and interval estimates of the true scale criterion validity with respect to a criterion that is assessed once or repeatedly, as well as a means for testing temporal stability in this validity. The outlined method is based on an application of the latent variable modeling methodology, is readily applicable with popular software, and is illustrated using empirical data.  相似文献   

Measurement invariance and validity of a brief questionnaire on reading motivation in elementary students          下载免费PDF全文

Franziska Stutz  Ellen Schaffner  Ulrich Schiefele 《Journal of Research in Reading》2017,40(4):439-461

In order to initiate more research on the role of reading motivation during the initial stages of learning to comprehend texts, we developed the Reading Motivation Questionnaire for Elementary Students (RMQ‐E). The sample comprised 1497 elementary students in Grades 1–3. By means of exploratory and confirmatory factor analyses, three factors were determined: Curiosity, involvement and competition. The three‐factor structure of the RMQ‐E was found to be invariant across grade levels (scalar invariance) and across female and male students (strict invariance). As was anticipated, students in higher grades and male students were lower in curiosity and involvement than students in lower grades and female students. Whereas competitive reading motivation did not differ across grade levels, it was higher for boys than for girls. Moreover, the contributions of involvement and competition to reading amount and reading competence were in accordance with the hypotheses. The predictive validity of curiosity, however, was not confirmed.  相似文献   

新时代高校教学秘书管理服务工作的变与不变     

陈庆春 《教育教学论坛》2019,(12):11-12

教学秘书职能的发挥保证了高等学校教学管理服务工作的正常运转,因此其是高等学校教学系统的重要组成部分。高校教学秘书主要从事管理服务工作,随着我国高等教育进入新时代,此项工作要面对一些新的变化,但是其基本的职能保持不变。对于管理服务工作的变与不变,高校教学秘书要加强学习,做好传承与创新。  相似文献   

The Measurement Structure,Stability and Mediating Effects of Achievement Goals in Math with Middle-School Student Data     

Yu-Tzu Chiang 《Scandinavian Journal of Educational Research》2014,58(5):513-527

This study examined the measurement structure, cross-year stability of achievement goals, and mediating effects of achievement goals between self-efficacy and math grades in a national sample of Taiwan middle school students. The measurement model with factorial structure showed good fit to the data. In the panel data (N?=?343), four achievement goals showed strong measurement invariance, suggesting factor loadings and intercepts of the items remained invariant across a year. Though mean scores of the four latent achievement goals held quite stable, the rank order of students across two time-points changed more profoundly in the two avoidance goals than in the approached goals. In the cross-sectional data (N?=?748), we found approach-based goals were positive mediators between self-efficacy and math grades while avoidance-based goals were negative mediators. This result could be relevant for middle-school students in learning mathematics. Some instructional implications are provided.  相似文献