Multidimensional IRT models for the assessment of competencies

Multidimensional item response theory (MIRT) provides an ideal foundation for modeling performance in complex domains, taking into account multiple basic abilities simultaneously, and representing different mixtures of the abilities required for different test items. This article provides a brief overview of different MIRT models, and the substantive implications of their differences for educational assessment. To illustrate the flexibility and benefits of MIRT, three application scenarios are described: to account for unintended multidimensionality when measuring a unidimensional construct, to model latent covariance structures between ability dimensions, and to model interactions of multiple abilities required for solving specific test items. All of these scenarios are illustrated by empirical examples. Finally, the implications of using MIRT models on educational processes are discussed.     

Orally Positioning Older People in Assessment Meetings

It has been demonstrated that persons with dementia may be positioned as less competent than participants of the same age without dementia, and that persons with dementia possibly also are positioned as less competent than other older persons without dementia. In the present study, we aim to explore this further by analyzing Swedish assessment meetings in which needs and preferences are investigated for older persons without dementia. The material consists five audio-recorded assessment meetings, where there were at least two conversational partners present (a spouse and/or a child) and where the older person applying for social services was not diagnosed with dementia. The ages of the older persons ranged from 81 to 88, while the age of the relatives ranged from 46 to 93. The results of the present study demonstrate that older persons without dementia mainly are positioned as competent. However, it may be related to the degree of frailty, because the frailest person in the present study appears to be positioned as less competent than the other participants. The present paper adds to existing knowledge on how professionals in assessment meetings contribute to the positioning of older persons as competent and capable of making decisions. The results of the present article may be useful to promote development of education and training of communication skills for care mangers in assessments. Such training would further ensure that older persons with and without cognitive impairments can be actively involved in the creation and interpretation of their applications for social services.     

Design milieux for learning environments in African contexts

During the years 2002 to 2009, five African settings were used as foundation for designing different learning environments. While the content and target group for each learning environment varied, all of their design settings, or milieux, shared one implicit expectation: the milieu should facilitate the production of a change‐making learning environment. A retrospective qualitative analysis identified a set of 10 common indicators that describe how successful a given setting is as a design milieu for creating learning environments. The study shows that for each design milieu indicator, a milieu can feature success and failure at the same time. The results, novel in their emphasis on the design setting rather than the use setting, can be used for both assessing the prospects of a particular milieu and improving its strengths for design opportunities especially in African or other developing contexts.     

Modeling Instructional Sensitivity Using a Longitudinal Multilevel Differential Item Functioning Approach

Students’ performance in assessments is commonly attributed to more or less effective teaching. This implies that students’ responses are significantly affected by instruction. However, the assumption that outcome measures indeed are instructionally sensitive is scarcely investigated empirically. In the present study, we propose a longitudinal multilevel‐differential item functioning (DIF) model to combine two existing yet independent approaches to evaluate items’ instructional sensitivity. The model permits for a more informative judgment of instructional sensitivity, allowing the distinction of global and differential sensitivity. Exemplarily, the model is applied to two empirical data sets, with classical indices (Pretest–Posttest Difference Index and posttest multilevel‐DIF) computed for comparison. Results suggest that the approach works well in the application to empirical data, and may provide important information to test developers.     

Gender Attitudes and Modernization Processes

The article aims to explain why attitudes toward gender equalityand gender relations in society vary between individuals andcountries. The hypotheses that are tested stem from two partlyconflicting theories of modernization. Wilensky (2002) advocatesa ‘structural’ explanation for variation in genderattitudes, while Inglehart (1990, 1997) suggests a ‘values’explanation. The author conducts a three-part analysis: an individual,a national, and a multilevel analysis. The structural explanationis better able to account for individual level gender attitudes.Values do, to some extent, serve as the mechanism that producesnational level variation. Inglehart (1990, 1997) is also rightin suggesting that the effect of values on gender attitudesincreases with increasing development. Received for publication August 30, 2005. Revision received December 10, 2005.     

Violence in urban schools: school professionals’ categorizations and explanations of violence among students in two different demographic areas

The present study explores how officials in Swedish secondary schools define and categorize situations in which students have been exposed to violence in the school. The study is designed as a case study of two secondary schools, situated in two demographically different urban neighbourhoods. The results indicate that different socio-economic conditions influence how professionals categorize and explain violence, but also what strategies are used to deal with different incidents. In the socially disadvantaged area, there is closer collaboration with the police, and filing police reports is more common. In the school located in a middle-class area, professionals handle similar situations by collaborating with parents and using diagnoses as the main explanation for students’ problematic behaviour.     

Lower extremity kinematics of athletics curve sprinting

Curve running requires the generation of centripetal force altering the movement pattern in comparison to the straight path run. The question arises which kinematic modulations emerge while bend sprinting at high velocities. It has been suggested that during curve sprints the legs fulfil different functions. A three-dimensional motion analysis (16 high-speed cameras) was conducted to compare the segmental kinematics of the lower extremity during the stance phases of linear and curve sprints (radius: 36.5 m) of six sprinters of national competitive level. Peak joint angles substantially differed in the frontal and transversal plane whereas sagittal plane kinematics remained unchanged. During the prolonged left stance phase (left: 107.5 ms, right: 95.7 ms, straight: 104.4 ms) the maximum values of ankle eversion (left: 12.7°, right: 2.6°, straight: 6.6°), hip adduction (left: 13.8°, right: 5.5°, straight: 8.8°) and hip external rotation (left: 21.6°, right: 12.9°, straight: 16.7°) were significantly higher. The inside leg seemed to stabilise the movement in the frontal plane (eversion–adduction strategy) whereas the outside leg provided and controlled the motion in the horizontal plane (rotation strategy). These results extend the principal understanding of the effects of curve sprinting on lower extremity kinematics. This helps to increase the understanding of nonlinear human bipedal locomotion, which in turn might lead to improvements in athletic performance and injury prevention.     

Thinking in Objects and their Collaboration: Introducing Object-Oriented Technology

Although many professionals in education believe that an ‘objects first’ approach is the best method of introducing object-oriented technology, there is no common agreement on how to start such courses. Current study programs often begin by teaching a chosen object-oriented programing language, where students are confronted by a large amount of syntactical detail. Instead of focusing on the basics of object-oriented technology, namely objects and their collaborations, difficulties in handling the details of the programing language lead to a very scattered knowledge of object-oriented concepts. This is dangerous, as learners are left with a set of unconnected knowledge fragments. Approaches which embed different knowledge fragments in an overall knowledge view are known as “cognitive apprenticeship” approaches. The main idea of cognitive apprenticeship is continuous practice. We present a learning environment for introducing object-oriented technology in upper secondary schools based on cognitive apprenticeship. We use a visual programing language to away from the details and provide tool support to aid practice. We present the learning sequencewhich is used and show the impacts it makes on the course structure in our experiment in the chosen object-oriented programming language The Joint Task Force on Computing Curricula IEEE Computer Society.