Automatic item generation of probability word problems

Mathematical word problems represent a common item format for assessing student competencies. Automatic item generation (AIG) is an effective way of constructing many items with predictable difficulties, based on a set of predefined task parameters. The current study presents a framework for the automatic generation of probability word problems based on templates that allow for the generation of word problems involving different topics from probability theory. It was tested in a pilot study with N = 146 German university students. The items show a good fit to the Rasch model. Item difficulties can be explained by the Linear Logistic Test Model (LLTM) and by the random-effects LLTM. The practical implications of these findings for future test development in the assessment of probability competencies are also discussed.     

Development and initial validation of a multidimensional questionnaire on the relationship to work (RWQ)

The paper presents first the theoretical foundations used to develop a pre-experimental version of a questionnaire on relationship to work, and then the four stages of its initial validation leading to an experimental version. These stages included: (1) Defining the dimensions and sub-dimensions of the relationship to work concept; (2) Operationalizing the dimensions and sub-dimensions and creating the items; (3) Verifying the face and content validity and developing the pre-experimental questionnaire; (4) Testing the pre-experimental questionnaire with 550 workers and 538 students, assessing its psychometric properties and elaborating the experimental questionnaire.

     

Performance in a simulated cricket batting innings (BATEX): reliability and discrimination between playing standards

The reliability (test-retest) of running-between-the-wickets times and skill performance was assessed during a batting exercise (BATEX) simulation of 2 h 20 min duration that requires intermittent shuttle running. In addition, performance and physiological responses (heart rate, sweat rate, rating of perceived exertion, blood lactate concentration) were compared between high- and low-grade district club batsmen (n = 22, mean ± s: age 20 ± 2 years, mass 73.4 ± 8.5 kg). Running-between-the-wickets performance was assessed with an infra-red timing system (Swift, Australia) by sampling a 5-m time for the middle section of the straight-line sprints (singles) and the time to complete 5 m in and out of the turn (5-0-5-m turn time). Skill performance was rated as a percentage for good bat-ball contacts. Coefficients of variation for running-between-the-wickets performance and percentage of good bat-ball contacts were both <5%. Percentage of good bat-ball contacts was greater in the high- than low-grade batsmen (70 ± 8 vs. 58 ± 9%, P = 0.01). All other variables were similar between grades. Running-between-the-wickets and skill-performance measures during the BATEX simulation were reliable, thus it can be used in future research.     

Predicting research excellence at the individual level: The importance of publication rate,top journal publications,and top 10% publications in the case of early career mathematicians

The purpose of this study was to examine the relationship between publication rate, top journal publications and excellence during the first eight years of the career, and how well publication rate, top journal publications and highly cited publications during the first four years of the career can predict whether an author attain excellence in the fifth to the eighth year. The dataset consisted of publication track records of 406 early career mathematicians in the sub-field of number theory collected from the MathSciNet database. Logistic regression and dominance analysis was applied to the data. The major conclusions were (1) publication rate had a positive effect on excellence during the first eighth years of the career. However, those who publish many articles in top journals, which implicitly require a high publication count, had an even higher probability of attaining excellence. These results suggest that publishing in top journals is very important in the process of attaining excellence in the early career in addition to publishing many papers; and (2) a dominance analysis indicated that the number of top journal publications and highly cited publications during the first four years of the career were the most important predictors of who will attain excellence in the later career. The results are discussed in relation to indicator development and science policy.     

The Use and Abuses of Emulation as a Pedagogical Practice

From the late eighteenth through the end of the nineteenth century, educational philosophers and practitioners debated the benefits and shortcomings of the use of emulation in schools. During this period, “emulation” referred to a pedagogy that leveraged comparisons between students as a tool to motivate them to higher achievement. Many educationists praised emulation as a necessary and effective motivator. Other educationists condemned it for its tendency to foster invidious competition between students and to devalue learning. Ultimately, by the late nineteenth century emulation as a specific pedagogical practice had disappeared in American educational culture. In this article, Mark Jonas and Drew Chambers ask whether the disappearance of emulation is something to be celebrated or lamented. To answer this question they examine the historical concept of educational emulation and analyze the bases on which proponents and opponents argued. Parties on both sides of the debate framed their arguments in close relation to the way emulation was being used at that time, which prioritized actual competitions and prizes. In that context, the opponents made a better case, which presumably contributed to emulation's disappearance in schools afterwards. However, as earlier proponents of emulation argued, emulation need not be restricted to competitions and prizes. Instead, these proponents offered a philosophically and psychologically rich defense of emulation, but these were not carried through to an appropriate degree. The authors conclude that, construed appropriately, emulation not only had tremendous educational potential then, but still does today. With intentional effort on the part of teachers, emulation can greatly enrich students' lives and act as a powerful learning motivator.     

Technical knowledge in a technical society: elementary school technology education in Sweden, 1919–1928

The aim of this article is to identify a technical domain of knowledge in the curriculum of the Swedish elementary school and views on elementary school technology of two interest groups – school teachers and engineers. Gradually during the early to mid‐1920s there was increased technical content in the Swedish elementary school, if we look at the new curriculum, in‐service education and stakeholders’ views. The main reasons for this were, first of all, that the first decades of the twentieth century witnessed industrial growth with accompanying technification of large parts of society including the school. Second, the curriculum of 1919 had a broader technical content than earlier curricula, and thus mirrored the societal changes. Third, vocational secondary schools led to new requirements in respect of elementary technology education. Representatives of the Government were prime movers in enhancing the significance of technology in school together with teachers, while engineers generally showed little interest.     

Learning biology and mathematics outdoors: effects and attitudes in a Swedish high school context

This research suggests that learning biology in an outdoor environment has a positive cognitive and affective impact on 13–15-year-old, Swedish high school pupils. Eighty-five pupils in four classes participated in a quasi-experimental design. Half the pupils, taking a biology course in ecology or diversity of life, had several lessons outdoors and the other half were taught indoors. All of the classes, but one, also had mathematics lessons outdoors once a week. Twenty-one pupils were interviewed five months after the course and all were positive towards the new learning environment they had experienced outdoors in biology and/or mathematics. They also valued the higher degree of interaction among the pupils. Other findings from the interviews were that the pupils from the outdoor classes showed a higher degree of long-term knowledge retention. They remembered both activities and contents better than the pupils in the indoor classes. An essay-type question assessing their biological understanding qualitatively according to the Structure of Observed Learning Outcome taxonomy revealed no differences between the groups. The results are discussed in the light of neurocognitive models of long-term memory.     

The moderating role of internal and external resources on the performance effect of multitasking: Evidence from the R&D performance of surgeons

R&D employees frequently must split their limited time between explorative R&D and exploitative operative tasks. This article explores the influence of this multitasking (pursuing both R&D and operations) on employee R&D performance. The article also analyzes how the relationship between multitasking and individual R&D performance interacts with the degree of access to internal and external resources. We hypothesize that multitasking positively affects R&D performance. Furthermore, we assume that the internal resources (funding, facilities, and support) are increasingly relevant when employees combine R&D and operative activities. However, multitasking employees may show less of a need for external resources (access to networks) in comparison to more focused colleagues. The results of a survey of 332 surgeons from 20 academic medical centers in Germany support our hypotheses. We conclude that managers should ensure that their R&D workforce is also involved in daily operations. Output will be optimized if these employees are not only engaged with explorative tasks but are also involved in exploitative activities. However, managers should also ensure that the appropriate organizational support is provided to individuals who attempt to combine exploration and exploitation. Multitasking individuals benefit the most from access to internal resources, whereas external resources are more efficiently allocated to explorative-only employees.