Adolescents‘ Self-Efficacy to Overcome Barriers to Physical Activity Scale     

John J. M. Dwyer  Tala Chulak  Scott Maitland  Kenneth R. Allison  Daria C. Lysy  Guy E. J. Faulkner 《Research quarterly for exercise and sport》2013,84(4):513-521

This paper describes a revised measure of self-efficacy to overcome barriers to moderate and vigorous physical activity in a sample of 484 high school students in Toronto, Ontario. The students had a mean age of 15.3 years. Principal axis factoring with oblique rotation yielded five factors: self-efficacy to overcome internal, harassment, physical environment, social environment, and responsibilities barriers. Two problematic items were removed, which resulted in a 22-item measure. Subsequent analyses were conducted on responses to this shortened measure. Confirmatory factor analysis supported the five-factor model and demonstrated age- and sexinvariance. The subscales had good internal consistency reliability. Structural regressions demonstrated a strong relationship between the resulting factors and a physical activity measure (energy expenditure), showing predictive validity.  相似文献   

Learning from Non-Reported Data: Interpreting Missing Body Mass Index Values in Young Children     

Kelly P. Arbour-Nicitopoulos  Guy E. Faulkner  Scott T. Leatherdale 《Measurement in physical education and exercise science》2013,17(4):241-251

The objective of this study was to examine the pattern of relations between missing weight and height (BMI) data and a range of demographic, physical activity, sedentary behavior, and academic measures in a young sample of elementary school children. A secondary analysis of a large cross-sectional study, PLAY-On, was conducted using self-reported data from a convenience sample of fifth- to eighth-grade students (9–14 years) attending 30 elementary schools in Ontario, Canada. Items assessed related to demographics (age, gender, and ethnicity), physical activity (energy expenditure, location, and sport participation), sedentary behavior (communication and screen-time), and academics. Of the 2,111 children who were included in the analyses, 960 (45.5%) were missing BMI data. Children without BMI data were more likely to be younger, female, of non-white ethnicity, have lower daily energy expenditure values, not participate in school sports, and have lower-rated academic standing than those children with BMI data. Overall, this study demonstrates characteristics of children who fail to self-report their height or weight. The trend for younger children to be more likely to fail to report BMI suggests that some children may be unmotivated non-responders. Meanwhile, the trend for girls to be more likely to fail to report weight than boys indicates that some girls may be motivated non-responders. Self-report BMI might include too much missing data to be effective for determining children's progress toward previously established targets for intervention and surveillance efforts.  相似文献   

Clinical Trial Registration in Physiotherapy Journals: Recommendations from the International Society of Physiotherapy Journal Editors     

O P Costa Leonardo  Christine Chung-Wei Lin  Debora Grossi Bevilaqua  Marisa Cota Mancini  Anne K Swisher  Chad Cook  Dan Vaughn  Mark R Elkins  Umer Sheikh  Ann Moore  Gwendolen Jull  Rebecca L Craik  Christopher G Maher  Rinaldo Roberto de Jesus Guirro  Amélia Pasqual Marques  Michele Harms  Dina Brooks  Guy G Simoneau  John Henry Strupstad 《Cardiopulmonary Physical Therapy Journal》2013,24(1):4-6

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Turning thinking on its head: How bodies make up their minds     

Guy Claxton 《Thinking Skills and Creativity》2012,7(2):78-84

The assumption that bodies have little to do with thinking – other than to be the vehicle that gets a mind to a classroom – deeply underpins the traditional model of schooling. Lessons and seminars are designed on the premise that thinking happens best when people are pretty still, their bodies are quiet and undemanding of attention, and they are writing or talking. Unless it is interfering, the physical body has little to do with cognition. This paper offers an overview of the emerging field of ‘embodied cognition’ that profoundly challenges this model of the mind, and therefore undermines many of the assumptions that underlie the dominant sedentary and disembodied approach to the high-status bits of education.  相似文献   

The Authenticity of Theory,Translation and Play:Perspectives on past and future ELT     

Guy Cook 《通化师范学院学报》2009,(4)

There is a popular view that academic theory about language teaching has a disempowering effect upon language teachers,and cannot engage with the realities of the classroom.The view has been expressed in many different quarters,and in many different ways.No less a theorist than Noam Chomsky,  相似文献   

Cross‐national Collaboration in Higher Education: new initiatives in European Community policy     

Guy Neave 《Compare》1988,18(1):53-61

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Book reviews     

Guy Belloncle  Paul Lengrand  H. G. Pauli 《Prospects》1979,9(3):385-390

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Literacy and identity     

Guy Merchant  Victoria Carrington 《Literacy》2009,43(2):63-64

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A systematic analysis of performance measures for classification tasks     

Marina Sokolova  Guy Lapalme 《Information processing & management》2009

This paper presents a systematic analysis of twenty four performance measures used in the complete spectrum of Machine Learning classification tasks, i.e., binary, multi-class, multi-labelled, and hierarchical. For each classification task, the study relates a set of changes in a confusion matrix to specific characteristics of data. Then the analysis concentrates on the type of changes to a confusion matrix that do not change a measure, therefore, preserve a classifier’s evaluation (measure invariance). The result is the measure invariance taxonomy with respect to all relevant label distribution changes in a classification problem. This formal analysis is supported by examples of applications where invariance properties of measures lead to a more reliable evaluation of classifiers. Text classification supplements the discussion with several case studies.  相似文献   

Public Examinations and Pupils’ Rights     

William Guy  Peter Chambers 《Cambridge Journal of Education》1973,3(2):83-89

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