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Vasilis Grammatikopoulos Athanasios Gregoriadis Michalis Linardakis 《Educational Measurement》2019,38(3):46-54
Self‐reported measures are an easy, time‐efficient, and low‐cost way to collect research data compared to other assessment methods. They are, however, characterized by several limitations regarding the quality and the clarity of the data they produce, especially when they are implemented in education. The main purpose of the current study was to use a method called discrete choice modeling (DCM) in education, in order to develop a self‐reported instrument that will reduce the bias for socially desirable responses and to assess teachers’ practices in physical activity. DCM method has the ability to overcome the respondents’ tendency to answer in a socially desirable way. A nationally representative sample of 531 Greek early educators participated in this study and were administered a self‐assessment questionnaire based on DCM. Results showed that the DCM based newly developed instrument manages to assess effectively educators’ practices and provided evidence of the applicability of the method in education. Further implications and future recommendations regarding the effective application of DCM in education are discussed. 相似文献
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Vasilios Grammatikopoulos Nikolaos Tsigilis Athanasios Koustelios Yannis Theodorakis 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2005,40(5):427-438
The aim of this study was to develop an instrument for evaluating how an education program has been implemented. Such evaluation
can provide insight into the effectiveness of a program. Examined here was the Olympic Education Program used in Greek schools
since 2000. In it, students learn the history of the Olympic games and the importance of exercise for health along with the
principles and values of sports and volunteerism. The evaluation instrument underlying this study addressed the following
six factors: ‘facilities’, ‘administration’, ‘educational material’, ‘student–teacher relationships’, ‘educational procedures’,
and ‘training’. Results indicate that the instrument, while adequate for assessing effectiveness, should be combined with
advanced statistical methods. 相似文献
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The aim of this study was to examine joint power generation during a concentric knee extension isokinetic test and a squat vertical jump. The isokinetic test joint power was calculated using four different methods. Five participants performed concentric knee extensions at 0.52, 1.57, 3.14 and 5.23 rad x s(-1) on a Lido isokinetic dynamometer. The squat vertical jump was performed on a Kistler force plate. Kinematic data from both tests were collected and analysed using an ELITE optoelectronic system. An inverse dynamics model was applied to measure knee joint moment in the vertical jump. Knee angular position data from the kinematic analysis in the isokinetic test were used to derive the actual knee angular velocity and acceleration, which, in turn, was used to correct the dynamometer moment for inertial effects. Power was measured as the product of angular velocity and moment at the knee joint in both tests. Significant differences (P < 0.05) were found between mean (+/- s) peak knee joint power in the two tests (squat vertical jump: 2255 +/- 434 W; isokinetic knee extension: 771 +/- 81 W). Correlation analysis revealed that there is no relationship between the peak knee joint power during the vertical jump and the slow velocity isokinetic tests. Higher isokinetic velocity tests show better relationships with the vertical jump but only if the correct method for joint power calculation is used in the isokinetic test. These findings suggest that there are important differences in muscle activation and knee joint power development that must be taken into consideration when isokinetic tests are used to predict jumping performance. 相似文献
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The paper discusses the use of systemic networks as a basis for the construction of a questionnaire. The subject of the questionnaire was teachers' views of the philosophy of science. It is argued that systemic networks have potential value in questionnaire construction in such problematic areas, offering help in dealing with both construct and face validity. The networks used, and the questionnaire based on them, were derived from an analysis of various philosophical positions. The analysis identified distinctions depicting the main philosophical differences, which were then represented in a network. The main systems described are inductivism, hypothetico‐deductivism (e.g., Popper, Lakatos), contextualism (e.g., Kuhn) and relativism (e.g., Feyerabend). Major distinctions turn on the issues of the unity of scientific method, criteria of demarcation, patterns of scientific change and the status of scientific knowledge. 相似文献
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This study was conducted to provide further information regarding factors associated with educational evaluation, using a qualitative approach. Fifty-five interviews were carried out with school principals. The results of the present study supported the notion that the qualitative methods could provide information that quantitative procedures could not. Additionally, the findings also provided useful information for solving problems in OEP implementation and enhanced decision-making by indicating points of the program that should be improved. 相似文献
7.
Anna Iossifidou Vasilios Baltzopoulos Giannis Giakas 《Journal of sports sciences》2013,31(10):1121-1127
The aim of this study was to examine joint power generation during a concentric knee extension isokinetic test and a squat vertical jump. The isokinetic test joint power was calculated using four different methods. Five participants performed concentric knee extensions at 0.52, 1.57, 3.14 and 5.23 rad?·?s?1 on a Lido isokinetic dynamometer. The squat vertical jump was performed on a Kistler force plate. Kinematic data from both tests were collected and analysed using an ELITE optoelectronic system. An inverse dynamics model was applied to measure knee joint moment in the vertical jump. Knee angular position data from the kinematic analysis in the isokinetic test were used to derive the actual knee angular velocity and acceleration, which, in turn, was used to correct the dynamometer moment for inertial effects. Power was measured as the product of angular velocity and moment at the knee joint in both tests. Significant differences (P <?0.05) were found between mean (?± s) peak knee joint power in the two tests (squat vertical jump: 2255?±?434W; isokinetic knee extension: 771?±?81W). Correlation analysis revealed that there is no relationship between the peak knee joint power during the vertical jump and the slow velocity isokinetic tests. Higher isokinetic velocity tests show better relationships with the vertical jump but only if the correct method for joint power calculation is used in the isokinetic test. These findings suggest that there are important differences in muscle activation and knee joint power development that must be taken into consideration when isokinetic tests are used to predict jumping performance. 相似文献
8.
Vasilis Grammatikopoulos Nikolaos Tsigilis Athanasios Gregoriadis Konstantinos Bikos 《Studies in Educational Evaluation》2013
This study is about the evaluation of an induction training program for Greek teachers. The program was evaluated by adopting an adjusted level model approach. Qualitative and quantitative data collection procedures were applied in order to assess the value of the training. The induction training was provided to Greek teachers who are appointed as permanent public employees at the beginning of each academic year. The results were encouraging for the applicability of the level model based evaluation in educational settings. The sequential hierarchy of the model was also tested and supported for the levels that were assessed quantitatively. Further evidence is needed in order to support the integration of methods and the sequential order of the level model approach. 相似文献
9.
We assessed autonomic nervous system modulation through changes in heart rate variability during an archery competition as well as archery performance by comparing novice and experienced adolescent archers. Seven novice (age 14.0 ± 8.5 years, body mass index 22.9 ± 4.3 kg · m(-2), training experience 0.4 ± 0.3 years) and ten experienced archers (age 16.5 ± 10.3 years, body mass index 22.4 ± 3.1 kg · m(-2), training experience 4.1 ± 0.9 years) volunteered. Using beat-by-beat heart rate monitoring, heart rate variability was measured for 20 s before each arrow shot during two rounds of competition. We found that, compared with novices, experienced adolescent archers: (i) take more time per shot; (ii) have a higher low frequency band, square root of the mean of squared differences between successive R-R intervals (i.e. the time elapsing between two consecutive R waves in the electrocardiogram), and percentage of successive normal-to-normal intervals greater than 50 ms; and (iii) demonstrate an increase in parasympathetic nervous system activity compared with pre-competition values. We propose that these characteristics of experienced archers are appropriate for optimal performance during competition. 相似文献
10.
Cross‐cultural Comparison of Gender Differences in Attitude towards Computers in Japan and Sweden[1]
Vasilios Makrakis 《Scandinavian Journal of Educational Research》2013,57(4):275-287
With the introduction and use of computers in schools, the study of gender differences in attitude towards computers becomes of particular interest. This article concerns the interaction of gender, culture and attitude in computers among Japanese and Swedish ninth‐grade school students. One of the major findings of this study is that most of the differences between the two countries are best explained by the country and the student gender variables. Accordingly, the culture and the society one lives in appears to be of greater importance in determining one's attitudes towards computers more than does, for example, the possession of a computer. The overall country effects are influenced more by the females in both countries than by males. 相似文献