Is the Item-Position Effect in Achievement Measures Induced by Increasing Item Difficulty?

This work examines the hypothesis that the arrangement of items according to increasing difficulty is the real source of what is considered the item-position effect. A confusion of the 2 effects is possible because in achievement measures the items are arranged according to their difficulty. Two item subsets of Raven’s Advanced Progressive Matrices (APM), one following the original item order, and the other one including randomly ordered items, were applied to a sample of 266 students. Confirmatory factor analysis models including representations of both the item-position effect and a possible effect due to increasing item difficulty were compared. The results provided evidence for both effects. Furthermore, they indicated a substantial relation between the item-position effects of the 2 APM subsets, whereas no relation was found for item difficulty. This indicates that the item-position effect stands on its own and is not due to increasing item difficulty.     

Valence bias in metacontrol of decision making in adolescents and young adults

The development of metacontrol of decision making and its susceptibility to framing effects were investigated in a sample of 201 adolescents and adults in Germany (12–25 years, 111 female, ethnicity not recorded). In a task that dissociates model-free and model-based decision making, outcome magnitude and outcome valence were manipulated. Both adolescents and adults showed metacontrol and metacontrol tended to increase across adolescence. Furthermore, model-based decision making was more pronounced for loss compared to gain frames but there was no evidence that this framing effect differed with age. Thus, the strategic adaptation of decision making continues to develop into young adulthood and for both adolescents and adults, losses increase the motivation to invest cognitive resources into an effortful decision-making strategy.     

What Happens After the Age of 14? Mapping Transitions for Pupils with Profound and Complex Learning Difficulties

This article reports on part one of a three-part national survey of provision for pupils aged 14 and older, in England and Wales, who have profound and complex learning difficulties. The survey is part of the Enhancing the Quality of Life (EqoL), a three-year research project jointly awarded to Skill: the National Bureau for Students with Disabilities, and the University of Cambridge School of Education. The aim of the project is to construct a framework for learning which will support improvements in the quality of life for these young people. It is funded by the National Lottery Charities Board.     

Domain-Generality and Domain-Specificity in Personal Epistemology Research: Philosophical and Empirical Reflections in the Development of a Theoretical Framework

This review synthesizes and critically examines 19 empirical studies that have addressed the domain-specificity/domain-generality issue in personal epistemology. We present an overview of traditional and more contemporary epistemological stances from philosophical perspectives to offer another basis from which to examine this issue. Explicit examples of academic domains are described and epistemological comparisons are made based on our synthesized definition. Given the epistemological similarities and differences across domains that we identified from empirical and philosophical considerations, we propose that beliefs are both domain general and domain specific. Accordingly, we present a theoretical framework of personal epistemology that incorporates both positions and hypothesize how the belief systems might interact in terms of the development of personal epistemology and relations to various facets of cognition, motivation, and achievement. The article ends with a discussion of educational implications.

What Are the Effects of Science Lesson Planning in Peers?—Analysis of Attitudes and Knowledge Based on an Actor–Partner Interdependence Model

This study focuses on the effects of collaborative lesson planning by science pre-service teachers on their attitudes and knowledge. In our study, 120 pre-service teachers discussed a preparation for a science inquiry lesson in dyads. The teacher with the lesson preparation had the role of the coachee, while the other was the coach. We investigated the following research questions: (1) Does learning occur between the two peers? and (2) Is the competency in lesson planning affected by the attitude and knowledge of coach and coachee? Based on an actor–partner interdependence model (APIM), we could clarify the relations of pedagogical content knowledge (PCK) and attitudes (ATT) between and within the dyads of coach and coachee, as well as their development over time. Furthermore, the APIM allowed the inclusion of a mediator (lesson planning competency). Both PCK and ATT increased slightly but significantly during our project. ATT and PCK seemed to converge between coach and coachee at the end of the project. However, we could not find any cross-lagged effects, meaning there was no effect of coach on coachee or vice versa over time. Further, preceding PCK showed a significant effect on the competency of lesson planning, but planning competency did not influence succeeding PCK or attitude. Finally, these results are discussed with respect to science teacher education.     

Hochintensives Intervalltraining im Sportunterricht

Background and aim

This study examined the effects of a 6-week high-intensity interval training (HIIT) vs. low-intensity endurance training (LOW), applied during physical education on motor performance, mood and perceived exertion.

Methods

Over a period of 6 weeks, 85 pupils (34 male; 51 female; age: 11.9?±?0.9 years) performed 11 sessions of either HIIT (20?min, intervals from 10?s to 4?min at about 90–100% of average running speed of 6?min run [v_mean]) or LOW (30?min, intervals from 6–25?min at about 65–85% v_mean). Before and after the 6?week intervention each pupils’ anthropometry and motor performance (20?m sprint, standing long-jump, lateral jumping from side to side, push-ups, sit-ups, 6?min run) were assessed. Session rating of perceived exertion (RPE) was recorded after each session and mood was assessed by questionnaire following the 3rd, 6th, 9th and 11th session.

Results

RPE (p?<?0.05) was higher and mood more positive (p?<?0.05) with HIIT compared to LOW. Performances in the 6?min run (p?<?0.001; part. η²?=?0.473), 20?m sprint (p?<?0.001; part. η²?=?0.226), standing long-jump (p?<?0.05; part. η²?=?0.056), push-ups (p?<?0.001; part. η²?=?0.523) and sit-ups (p?<?0.001; part. η²?=?0.146) improved following HIIT and LOW with no significant time?×?group interaction (except for the sit-ups [p?<?0.05; part. η²?=?0.048]).

Conclusions

HIIT and LOW improved the performances in 6?min run, 20?m sprint, standing long-jump and push-ups similarly. However, the improvements in HIIT compared to LOW were achieved in 30% less time. As time is limited in physical education classes, HIIT offers a new perspective for improving endurance and motor performance in children. The positive mood associated with HIIT demonstrates the applicability in physical education.

     

What Happens to Policies When Assuming Institutions? A Short Story About Romania’s Never-Ending Educational Reform

Over the past decades, educational reform has been one of the centerpieces of transition in Central and Eastern Europe. A huge degree of variability among countries exists, from sudden liberalization to securing the status quo previous to revolutionary political change. Reforms have ranged from institutional to instrumental changes. We argue that policies may lead to undesirable outcomes, when they assume a certain institutional framework. We then describe the evolution of Romania’s educational system, focusing on a case study of an implemented large-scale policy program: the Rural Education Project for Romania. We thus argue that by assuming institutional change such attempts are bound to fail because the existing status quo adapts actions to existing practices, thus leading to unexpected outcomes.     

不同患者群体容量反应性变量参数应用的强制性标准:重症监护病人窦性节律和控制呼吸流行情况的前瞻性研究（英文）

目的:通过对危重病人在入院后24小时内和整个重症监护过程中窦性心律和控制呼吸情况的调查,分析每搏量变异在评估危重病人容量反应的适用性,并探究每搏量变异度在败血症、肝硬化和胰腺炎病人中的适用性。创新点:通过探究窦性节律和控制呼吸情况评估每搏量变异度在重症监护病人临床上的适用性,弥补重症监护病人窦性节律和控制呼吸情况数据的空白。方法:在进行1241次热稀释法血流量测量前,对88位病人的窦性节律和控制呼吸情况进行调查。结论:每搏量变异度在主要的医疗重症监护病房中的适用性只约为25%~35%。两项强制性指标的流行性在重症监护病房的情况随时间的延长而降低。此外,每搏量变异度在胰腺炎和肝功能衰竭患者中的适用性尤其低。