Evaluating Intervention Effects in a Diagnostic Classification Model Framework

The evaluation of intervention effects is an important objective of educational research. One way to evaluate the effectiveness of an intervention is to conduct an experiment that assigns individuals to control and treatment groups. In the context of pretest/posttest designed studies, this is referred to as a control‐group pretest/posttest design. The transition diagnostic classification model (TDCM) was recently developed to assess growth, defined as change in attribute mastery status over time, in a diagnostic classification model framework. The TDCM, however, does not model multiple groups, and therefore is not able to analyze data from a control‐group pretest/posttest designed experiment. In this study, we extend the TDCM to model multiple groups, thereby enabling the examination of group‐differential growth in attribute mastery and the evaluation of intervention effects. The utility of the multigroup TDCM is demonstrated in the evaluation of an innovative instructional method in mathematics education.     

Physical Activity Classification in Youth Using Raw Accelerometer Data from the Hip

ABSTRACT

This study developed and evaluated machine learning algorithms to predict children’s physical activity category from raw accelerometer data collected at the hip. Fifty participants (mean age = 13.9 ± 3.0 y) completed 12 activity trials that were categorized into 5 categories: sedentary (SED), light household activities and games (LHHAG), moderate-vigorous games and sports (MVGS), walking (WALK), and running (RUN). Random Forest (RF) and Logistic Regression (LR) classifiers were trained with features extracted from the vector magnitude using 10?s non-overlapping windows. Classification accuracy was evaluated using leave-one-subject-out cross validation. Overall accuracy for the RF and LR classifiers was 95.7% and 94.3%, respectively. Classification accuracy was excellent for SED (96.3% – 98.1%), LHHAG (92.3% – 95.2%), WALK (94.5% – 97.1%), RUN (99.5% – 99.6%); and MVGS (87.5% – 92.7%). The results indicate that classifiers trained on features in the raw acceleration from the hip can be used for activity recognition in young people.

Abbreviations: VM: Vector Magnitude; RF: Random Forest; LR: Logistic Regression; LOSO: Leave-One-Subject-Out     

The influence of successive matches on match-running performance during an under-23 international soccer tournament: The necessity of individual analysis

This study investigated the effects of successive matches on match-running in elite under-23 soccer players during an international tournament. Match-running data was collected using a semi-automated multi-camera tracking system during an international under-23 tournament from all participating outfield players. Players who played 100% of all group stage matches were included (3 matches separated by 72 h, n = 44). Differences in match-running performance between matches were identified using a generalised linear mixed model. There were no clear effects for total, walking, jogging, running, high-speed running and sprinting distance between matches 1 and 3 (effect size (ES); ?0.32 to 0.05). Positional analysis found that sprint distance was largely maintained from matches 1 to 3 across all positions. Attackers had a moderate decrease in total, jogging and running distance between matches 1 and 3 (ES; ?0.72 to ?0.66). Classifying players as increasers or decreasers in match-running revealed that match-running changes are susceptible to individual differences. Sprint performance appears to be maintained over successive matches regardless of playing position. However, reductions in other match-running categories vary between positions. Changes in match-running over successive matches affect individuals differently; thus, players should be monitored on an individual basis.     

Saint or Sinner?: A Reconsideration of the Career of Prince Alexandre de Merode,Chair of the International Olympic Committee's Medical Commission, 1967–2002

This article explores the role of Prince Alexandre de Merode in heading the IOC's fight against drugs from the 1960s to 2002. History has not served de Merode very well. He has been presented in simplistic ways that emerge from context rather than evidence – as either a saint or a sinner. IOC-sanctioned accounts cast him inthe mould of the saint: a moral and intelligent man who saved sports from doping. In contrast, sports academics have tended to portray him as a sinner: an ineffectual leader who did not develop either the testing systems or the punishments required to prevent doping and who deliberately concealed evidence of high-profile doping cases. This article assesses both representations before presenting information to support a richer and more complicated interpretation.     

A National Survey of Assessment Instruments Taught by Counselor Educators

This study reports results of a questionnaire of 210 counselor educators regarding assessment instruments covered in their assessment courses. Instruments are ranked on how extensively they are covered, and comparisons of coverage are made by assessment category (e.g., educational, clinical) and by instructor and program characteristic (e.g., Council for Accreditation of Counseling and Related Educational Programs [CACREP] vs. non‐CACREP). Suggestions regarding which assessment techniques to cover in a basic counselor education testing and assessment course are made.     

The application of Gestalt to organizational interventions in universities

Abstract

This paper will outline the Gestalt cycle, (Perls, 1947) used as the basis for modelling the process of Gestalt therapy and counselling. Then we will go on to describe how it (Gestalt) can be used as a way of understanding organizational processes and culture. For staff developers to be effective in influencing the organizations in which they work they have to be able to make appropriate interventions. The necessary skills and attributes required of a staff developer operating in a Gestalt role will be discussed. Gestalt offers one model that can help the staff developer decide what interventions are appropriate when and why.

The paper will then move on to look at what happens if an organization gets stuck at any point in the Gestalt cycle and what this will feel like for employees and students. We will then offer intervention strategies for moving the organization on round the cycle.

Finally we will draw some general conclusions about how staff developers have a key role in helping universities cope, manage and adapt in these times of rapid change in Higher Education.     

Explaining Chinese students' academic motivation: filial piety and self‐determination

This study investigated the relevance of filial piety and the three components of self‐determination, namely, competence, autonomy and relatedness, on academic motivation among Hong Kong Chinese secondary school students. A total of 461 students completed the questionnaire which consisted of five scales assessing attitudes towards filial piety, perceived scholastic competence, perceived autonomous support from parents, relatedness with parents and academic motivation. By using structural equation modelling, a predictive model of academic motivation, with filial piety, competence, autonomy, relatedness, age and gender as antecedents, was developed. All variables explained the prediction of academic motivation, with competence acted as the strongest effect, followed by relatedness and filial piety. The findings highlight the important contribution of the three self‐determination theory (SDT) components and the value of filial piety for Chinese adolescents' academic motivation. The implications of the findings for future research and educational practice were discussed.     

Assessment leaders’ perspectives of institutional cultures of assessment: a Delphi study

Institutional cultures of assessment are praised as beneficial to student learning. Yet, extant studies have not explored the theoretical foundations and pragmatic approaches to shaping cultures of assessment. The researchers used the Delphi method to explore 10 higher education assessment leaders’ attitudes and theoretical perspectives regarding cultures of assessment. These expert assessment leaders were iteratively surveyed until a reasonable threshold of consensus was reached. Study participants viewed buy-in as a necessary component of a positive campus culture of assessment, and advice on reshaping negative cultures was offered. Assessment leaders’ guiding theoretical frameworks were implied and loosely defined with metaphors. Finally, advice is offered for improving cultures of assessment by symbolically connecting assessment to student learning through dialogue.     

Managing the paradox of control: the case of ground-up implementation of active learning in Singapore’s primary schools

The Singaporean education system has recently shifted emphasis from being highly centralised and standardised towards one that aims to promote innovation and autonomy at the school level. Yet, the concomitant move towards a more decentralised and flexible curriculum enacted and controlled at the local level has not been straightforward. Consequently, Hargreaves, Shirley, and Ng have described five paradoxes of educational and social change that characterise Singapore’s continued performance in academic achievement. One of these paradoxes is the paradox of control: How could the Ministry of Education (MOE) release classroom decision making and curriculum development to teachers and schools, while maintaining overall control across the system? They respond that the MOE maintains a fine balance characterised as bottom-up innovation with top-down support that requires further investigation. In this paper, we illustrate the implementation of an active learning curriculum in four primary schools to illustrate this approach of ‘top-down support for bottom-up’ curricular innovation in schools. In Singapore, the ‘Teach Less, Learn More’ movement has ignited school-based development of innovative curricula to bring about active learning, with the intention of developing pupil attributes such as creativity, collaboration, and self-confidence. Our case study explores how practitioners implement a curriculum that is meant to nurture a more emancipatory spirit in students that builds up their confidence and collaboration through active learning. A key premise is that such a curriculum requires practitioners’ autonomy to interpret the goals and desired outcomes and to plan their pupils’ learning experiences.