Researching participants taking IELTS Academic Writing Task 2 (AWT2) in paper mode and in computer mode in terms of score equivalence, cognitive validity and other factors

Computer-based (CB) assessment is becoming more common in most university disciplines, and international language testing bodies now routinely use computers for many areas of English language assessment. Given that, in the near future, IELTS also will need to move towards offering CB options alongside traditional paper-based (PB) modes, the research reported here prepares for that possibility, building on research carried out some years ago which investigated the statistical comparability of the IELTS writing test between the two delivery modes, and offering a fresh look at the relevant issues. By means of questionnaire and interviews, the current study investigates the extent to which 153 test-takers’ cognitive processes, while completing IELTS Academic Writing in PB mode and in CB mode, compare with the real-world cognitive processes of students completing academic writing at university. A major contribution of our study is its use – for the first time in the academic literature – of data from research into cognitive processes within real-world academic settings as a comparison with cognitive processing during academic writing under test conditions. The most important conclusion from the study is that according to the 5-facet MFRM analysis, there were no significant differences in the scores awarded by two independent raters for candidates’ performances on the tests taken under two conditions, one paper-and-pencil and the other computer. Regarding analytic scores criteria, the differences in three areas (i.e. Task Achievement, Coherence and Cohesion, and Grammatical Range and Accuracy) were not significant, but the difference reported in Lexical Resources was significant, if slight. In summary, the difference of scores between the two modes is at an acceptable level. With respect to the cognitive processes students employ in performing under the two conditions of the test, results of the Cognitive Process Questionnaire (CPQ) survey indicate a similar pattern between the cognitive processes involved in writing on a computer and writing with paper-and-pencil. There were no noticeable major differences in the general tendency of the mean of each questionnaire item reported on the two test modes. In summary, the cognitive processes were employed in a similar fashion under the two delivery conditions. Based on the interview data (n=30), it appears that the participants reported using most of the processes in a similar way between the two modes. Nevertheless, a few potential differences indicated by the interview data might be worth further investigation in future studies. The Computer Familiarity Questionnaire survey shows that these students in general are familiar with computer usage and their overall reactions towards working with a computer are positive. Multiple regression analysis, used to find out if computer familiarity had any effect on students’ performances on the two modes, suggested that test-takers who do not have a suitable familiarity profile might perform slightly worse than those who do, in computer mode. In summary, the research offered in this report offers a unique comparison with realworld academic writing, and presents a significant contribution to the research base which IELTS and comparable international testing bodies will need to consider, if they are to introduce CB test versions in future

Damage function for historic paper. Part I: Fitness for use

Background In heritage science literature and in preventive conservation practice, damage functions are used to model material behaviour and specifically damage (unacceptable change), as a result of the presence of a stressor over time. For such functions to be of use in the context of collection management, it is important to define a range of parameters, such as who the stakeholders are (e.g. the public, curators, researchers), the mode of use (e.g. display, storage, manual handling), the long-term planning horizon (i.e. when in the future it is deemed acceptable for an item to become damaged or unfit for use), and what the threshold of damage is, i.e. extent of physical change assessed as damage. Results In this paper, we explore the threshold of fitness for use for archival and library paper documents used for display or reading in the context of access in reading rooms by the general public. Change is considered in the context of discolouration and mechanical deterioration such as tears and missing pieces: forms of physical deterioration that accumulate with time in libraries and archives. We also explore whether the threshold fitness for use is defined differently for objects perceived to be of different value, and for different modes of use. The data were collected in a series of fitness-for-use workshops carried out with readers/visitors in heritage institutions using principles of Design of Experiments. Conclusions The results show that when no particular value is pre-assigned to an archival or library document, missing pieces influenced readers/visitors’ subjective judgements of fitness-for-use to a greater extent than did discolouration and tears (which had little or no influence). This finding was most apparent in the display context in comparison to the reading room context. The finding also best applied when readers/visitors were not given a value scenario (in comparison to when they were asked to think about the document having personal or historic value). It can be estimated that, in general, items become unfit when text is evidently missing. However, if the visitor/reader is prompted to think of a document in terms of its historic value, then change in a document has little impact on fitness for use

Analyzing Peer Selection Policies for BitTorrent Multimedia On-Demand Streaming Systems in Internet

The adaptation of the BitTorrent protocol to multimedia on-demand streaming systems essentially lies on the modification of its two core algorithms, namely the piece and the peer selection policies, respectively. Much more attention has though been given to the piece selection policy. Within this context, this article proposes three novel peer selection policies for the design of BitTorrent-like protocols targeted at that type of systems: Select Balanced Neighbour Policy (SBNP), Select Regular Neighbour Policy (SRNP), and Select Optimistic Neighbour Policy (SONP). These proposals are validated through a competitive analysis based on simulations which encompass a variety of multimedia scenarios, defined in function of important characterization parameters such as content type, content size, and client interactivity profile. Service time, number of clients served and efficiency retrieving coefficient are the performance metrics assessed in the analysis. The final results mainly show that the novel proposals constitute scalable solutions that may be considered for real project designs. Lastly, future work is included in the conclusion of this paper.Comment: 19 PAGE

Visual and computational analysis of structure-activity relationships in high-throughput screening data

Novel analytic methods are required to assimilate the large volumes of structural and bioassay data generated by combinatorial chemistry and high-throughput screening programmes in the pharmaceutical and agrochemical industries. This paper reviews recent work in visualisation and data mining that can be used to develop structure-activity relationships from such chemical/biological datasets

Ecofeminism in the 21st Century

This paper considers the influence of ecofeminism on policy concerning gender (in)equality and the environment during the past 20 years. It reviews the broad contours of the ecofeminist debate before focusing on the social construction interpretation of women's relationship with the environment. It will argue that there have been substantial policy shifts in Europe and the UK in both the environmental and equalities fields, and that this is in part a result of lobbying at a range of scales by groups informed by ecofeminist debates. Nevertheless, the paper cautions that these shifts are largely incremental and operate within existing structures, which inevitably limit their capacity to create change. As policy addresses some of the concerns highlighted by ecofeminism, academic discourse and grass roots activity have been moving on to address other issues, and the paper concludes with a brief consideration of contemporary trajectories of ecofeminism and campaigning on issues that link women's, feminist and environment concerns

Moral enhancement: do means matter morally?

One of the reasons why moral enhancement may be controversial, is because the advantages of moral enhancement may fall upon society rather than on those who are enhanced. If directed at individuals with certain counter-moral traits it may have direct societal benefits by lowering immoral behavior and increasing public safety, but it is not directly clear if this also benefits the individual in question. In this paper, we will discuss what we consider to be moral enhancement, how different means may be used to achieve it and whether the means we employ to reach moral enhancement matter morally. Are certain means to achieve moral enhancement wrong in themselves? Are certain means to achieve moral enhancement better than others, and if so, why? More specifically, we will investigate whether the difference between direct and indirect moral enhancement matters morally. Is it the case that indirect means are morally preferable to direct means of moral enhancement and can we indeed pinpoint relevant intrinsic, moral differences between both? We argue that the distinction between direct and indirect means is indeed morally relevant, but only insofar as it tracks an underlying distinction between active and passive interventions. Although passive interventions can be ethical provided specific safeguards are put in place, these interventions exhibit a greater potential to compromise autonomy and disrupt identity

Intensive English language program for overseas students at Malaysian private tertiary education institutions

As Malaysia is positioning itself to be a regional center of educational excellence, efforts are taken to recruit international students from other countries in the region to pursue international tertiary education, with English as the language of instruction. It is an acceptable fact that most countries within the region place English as a foreign language, thus, the majority of students coming from these countries do not possess the command of English language required to study at a tertiary level. Therefore, as an international education provider, Malaysia has to cater for this need. This paper aims to highlight the competitive advantages and limitations that Malaysia has in terms of providing the English language program that overseas students need. It also explores possible strategies to overcome the limitations. The discussion is focused on Malaysian private tertiary education institutions. It mainly stemmed from a critical analysis of Malaysian education system as well as the socio and cultural aspects of Malaysia. It also incorporates data from informal discussions with English teachers and international students

The Imaging Magnetograph eXperiment (IMaX) for the Sunrise balloon-borne solar observatory

The Imaging Magnetograph eXperiment (IMaX) is a spectropolarimeter built by four institutions in Spain that flew on board the Sunrise balloon-borne telesocope in June 2009 for almost six days over the Arctic Circle. As a polarimeter IMaX uses fast polarization modulation (based on the use of two liquid crystal retarders), real-time image accumulation, and dual beam polarimetry to reach polarization sensitivities of 0.1%. As a spectrograph, the instrument uses a LiNbO3 etalon in double pass and a narrow band pre-filter to achieve a spectral resolution of 85 mAA. IMaX uses the high Zeeman sensitive line of Fe I at 5250.2 AA and observes all four Stokes parameters at various points inside the spectral line. This allows vector magnetograms, Dopplergrams, and intensity frames to be produced that, after reconstruction, reach spatial resolutions in the 0.15-0.18 arcsec range over a 50x50 arcsec FOV. Time cadences vary between ten and 33 seconds, although the shortest one only includes longitudinal polarimetry. The spectral line is sampled in various ways depending on the applied observing mode, from just two points inside the line to 11 of them. All observing modes include one extra wavelength point in the nearby continuum. Gauss equivalent sensitivities are four Gauss for longitudinal fields and 80 Gauss for transverse fields per wavelength sample. The LOS velocities are estimated with statistical errors of the order of 5-40 m/s. The design, calibration and integration phases of the instrument, together with the implemented data reduction scheme are described in some detail.Comment: 17 figure

Globalisation, organisational modes and the growth of international strategic technology alliances

Abstract not availableinternational economics and trade ;