A Test Sheet Optimization Approach to Supporting Web-based Learning Diagnosis Using Group Testing Methods

2017 ◽  
Vol 7 (4) ◽  
pp. 1-23
Author(s):  
Chu-Fu Wang ◽  
Chih-Lung Lin ◽  
Gwo-Jen Hwang ◽  
Sheng-Pin Kung ◽  
Shin-Feng Chen
Keyword(s):  
Test Item ◽  
Group Testing ◽  
Diagnostic System ◽  
Point Of View ◽  
Optimization Approach ◽  
Exposure Rate ◽  
Web Based ◽  
Item Exposure ◽  
Test Items ◽  
Doubling Method

Assessment can help teachers to examine the effectiveness of teaching and to diagnose the unfamiliar basic concepts (or attributes) of students within the testing scope. A web-based adaptive testing and diagnostic system can achieve the above objective efficiently and correctly. From a diagnostic point of view, the major concerns are to diagnose whether or not an examinee has learned each basic concept well in the testing scope, while also limiting the number of test items used (the testing length) to as few as possible, which will be directly related to the patience of the examinee. In this paper, we consider a test item selecting optimization diagnostic problem to reveal the mastery profile of an examinee (that is, to diagnose each basic concept's learning status (well learned/unfamiliar) in the testing scope) with a short testing length and a limited test item exposure rate. This paper uses the techniques of Group Testing theory for the design of our test item selecting algorithm. Two test item selecting strategies, the bisecting method and the doubling method, are proposed. The effectiveness of the proposed methods was evaluated by experimental simulations. The results show that both of the proposed algorithms use fewer test items and a limited test item exposure rate compared to the conventional methods.

scholarly journals On the Interaction of Gestural and Linguistic Perspective Taking

2021 ◽  
Vol 6 ◽  
Author(s):  
Stefan Hinterwimmer ◽  
Umesh Patil ◽  
Cornelia Ebert
Keyword(s):  
Perspective Taking ◽  
Test Item ◽  
Point Of View ◽  
Experimental Results ◽  
The Other ◽  
Clear Preference ◽  
Test Items ◽  
Linguistic Level ◽  
As If

In this paper, we investigate the question of whether and how perspective taking at the linguistic level interacts with perspective taking at the level of co-speech gestures. In an experimental rating study, we compared test items clearly expressing the perspective of an individual participating in the event described by the sentence with test items which clearly express the speaker’s or narrator’s perspective. Each test item was videotaped in two different versions: In one version, the speaker performed a co-speech gesture in which she enacted the event described by the sentence from a participant’s point of view (i.e. with a character viewpoint gesture). In the other version, she performed a co-speech gesture depicting the event described by the sentence as if it was observed from a distance (i.e. with an observer viewpoint gesture). Both versions of each test item were shown to participants who then had to decide which of the two versions they find more natural. Based on the experimental results we argue that there is no general need for perspective taking on the linguistic level to be aligned with perspective taking on the gestural level. Rather, there is clear preference for the more informative gesture.

Analyzing the Distractors of Multiple-Choice Test Items or Partitioning Multinomial Cell Probabilities with Respect to a Standard

1981 ◽  
Vol 41 (4) ◽  
pp. 1051-1068 ◽  
Author(s):  
Rand R. Wilcox
Keyword(s):  
Retrospective Study ◽  
Test Item ◽  
Multiple Choice ◽  
Point Of View ◽  
Choice Test ◽  
Multiple Choice Test ◽  
Small Probability ◽  
Indifference Zone ◽  
Test Items ◽  
Formal Framework

When analyzing the distractors of multiple-choice test items, it is sometimes desired to determine which of the distractors has a small probability of being chosen by a typical examinee. At present, this problem is handled in an informal manner. In particular, using an arbitrary number of examinees, the probabilities associated with the distractors are estimated and then sorted according to whether the estimated values are above or below a known constant p0 In this paper a more formal framework for solving this problem is described. The first portion of the paper considers the problem from the point of view of designing an experiment. The solution is based on a procedure similar to an indifference zone formulation of a ranking and election problem. A later section considers methods that might be employed in a retrospective study. Brief consideration is also given to how an analysis might proceed when a test item has been altered in some way.

scholarly journals Patient’s point of view on the use of telemedicine in multiple sclerosis: a web-based survey

2021 ◽  
Author(s):  
Doriana Landi ◽  
Marta Ponzano ◽  
Carolina Gabri Nicoletti ◽  
Gaia Cola ◽  
Gianluca Cecchi ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Point Of View ◽  
Physical Parameters ◽  
Chronic Medical Conditions ◽  
Socioeconomic Conditions ◽  
Web Based ◽  
Healthcare Facilities ◽  
Advantages And Disadvantages ◽  
Disease Characteristics ◽  
Degree Of Disability

AbstractRestrictions in the access to healthcare facilities during COVID-19 pandemic have raised the need for remote monitoring of chronic medical conditions, including multiple sclerosis (MS). In order to enable the continuity of care in these circumstances, many telemedicine applications are currently tested. While physicians’ preferences are commonly investigated, data regarding the patients’ point of view are still lacking. We built a 37 items web-based survey exploring patients’ propensity, awareness, and opinions on telemedicine with the aim to evaluate the sustainability of this approach in MS. Analysing 613 questionnaires out of 1093 that were sent to persons with MS followed at the Multiple Sclerosis Center of Tor Vergata University, Rome, we found that more than half of respondents (54%) were open to having a televisit. Propensity toward telemedicine significantly depended on having a higher income (p = 0.037), living farther from the center (p = 0.038), using computer and tablet (p = 0.010) and using the Internet for other remote activities (p < 0.001), conversely it was not influenced by any specific disease characteristics (i.e. degree of disability). The main advantages and disadvantages of televisit reported by participants were respectively saving time (70%) and impossibility to measure physical parameters (71%). Although the majority of respondents are in favour of televisit, so far this approach is restricted to those displaying better socioeconomic conditions and higher familiarity with technology. Implications of the study are that telemedicine platforms should be better tailored to patients’ demands in order to spread the use of telemedicine, to enhance usability and to increase patients’ adherence.

scholarly journals The Metano Modeling Toolbox MMTB: An Intuitive, Web-Based Toolbox Introduced by Two Use Cases

Metabolites ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 113
Author(s):  
Julia Koblitz ◽  
Sabine Will ◽  
S. Riemer ◽  
Thomas Ulas ◽  
Meina Neumann-Schaal ◽  
...  
Keyword(s):  
Metabolic Networks ◽  
Point Of View ◽  
Use Cases ◽  
Mathematical Methods ◽  
State Behavior ◽  
Web Based ◽  
Research Fields ◽  
Balance Analysis ◽  
Metabolic Models ◽  
User Friendly

Genome-scale metabolic models are of high interest in a number of different research fields. Flux balance analysis (FBA) and other mathematical methods allow the prediction of the steady-state behavior of metabolic networks under different environmental conditions. However, many existing applications for flux optimizations do not provide a metabolite-centric view on fluxes. Metano is a standalone, open-source toolbox for the analysis and refinement of metabolic models. While flux distributions in metabolic networks are predominantly analyzed from a reaction-centric point of view, the Metano methods of split-ratio analysis and metabolite flux minimization also allow a metabolite-centric view on flux distributions. In addition, we present MMTB (Metano Modeling Toolbox), a web-based toolbox for metabolic modeling including a user-friendly interface to Metano methods. MMTB assists during bottom-up construction of metabolic models by integrating reaction and enzymatic annotation data from different databases. Furthermore, MMTB is especially designed for non-experienced users by providing an intuitive interface to the most commonly used modeling methods and offering novel visualizations. Additionally, MMTB allows users to upload their models, which can in turn be explored and analyzed by the community. We introduce MMTB by two use cases, involving a published model of Corynebacterium glutamicum and a newly created model of Phaeobacter inhibens.

Web-Based Two-Tier Diagnostic Test and Remedial Learning Experiment

2010 ◽  
Vol 8 (1) ◽  
pp. 31-53 ◽  
Author(s):  
Ah-Fur Lai ◽  
Deng-Jyi Chen
Keyword(s):  
Diagnostic Test ◽  
Test Theory ◽  
Multimedia Technology ◽  
Learning Effects ◽  
Web Based ◽  
Test Items ◽  
Electro Magnetic ◽  
Experimental Group ◽  
Northern Taiwan ◽  
Better Than

Offering a series of diagnosis and individual remedial learning activities for a general class by means of web and multimedia technology can overcome the dilemma of conventional diagnosis and remedial instruction. The study proposes a three-layer conceptual framework and adopts a two-tier diagnostic test theory to develop a web-based two-tier diagnostic test and remedial learning management system called “the Dr. System.” The study also designs the two-tier diagnostic test items of electro-magnetic concepts and the related multimedia remedial learning materials based on the theory of modular course for the purpose of investigating the remedial learning effects. In addition, the study helps the participants eliminate their misconception through a quasi-experiment at an elementary school in a metropolitan area of northern Taiwan. The results show that the learners of the experimental group who received the treatment under the Dr. System performed significantly better than those who took the traditional remedial class. The study also indicates that the web-based two-tier diagnostic test helps us understand learners’ misconceptions. As a result, it also provides learners useful remedial multimedia materials, which are necessary for them to eliminate their individual misconceptions in the remedial learning process.

Optimizing Skyscrapers' Spatial Integrated DSF-MTMD System Under Wind Loads

2019 ◽  
Author(s):  
Oren Lavan ◽  
Liran Anaby
Keyword(s):  
Structural Engineering ◽  
Tall Buildings ◽  
Point Of View ◽  
Wind Loads ◽  
Optimization Approach ◽  
Wind Effects ◽  
Mass Damper ◽  
Double Skin ◽  
The Cost ◽  
Formal Optimization

<p>From a structural engineering point of view, wind effects pose one of the major challenges to tall buildings. From a performance/architectural point of view, climatologic aspects pose a major challenge. Remedies for each challenge separately have been proposed. One of the remedies for wind effects is the Tunes-Mass-Damper (TMD) or multiple TMD's. To mitigate climatological issues, the Double-Skin-Façade (DSF) has been developed. Recently it has been suggested to take advantage of the space between the two skins of the DSF system to allocate TMD's.</p><p>In this work, another step is taken towards a single remedy for both challenges. A modified version of the TMD-DSF system proposed by Moon (2016) is presented. That is, parts of the mass of the DSF envelope itself are used as part of a multiple TMD (MTMD) system. This is obtained by connecting these parts to the building using springs and dampers while allowing the DSF to move parallel to the floor edges. Furthermore, the DSF-MTMD system is optimized using a formal optimization approach. The optimization indicates which parts of the envelope should be connected to the building rigidly and which should be used as TMD's. Furthermore, the properties of the springs and the dampers are determined by minimizing the cost associated with transforming the DSF system to a DSF-MTMD system and limiting wind responses to desired values.</p>

A web-based language learning environment: general architecture

ReCALL ◽  
1999 ◽  
Vol 11 (S1) ◽  
pp. 31-39
Author(s):  
Pierre-Yves Foucou ◽  
Natalie Kübler
Keyword(s):  
Learning Environment ◽  
Language Learning ◽  
Computer Science ◽  
Subject Area ◽  
Point Of View ◽  
Learning Activities ◽  
Web Based ◽  
Wide Range ◽  
General Architecture ◽  
The Web

In this paper, we present the Web-based CALL environment (or WALL) which is currently being experimented with at the University of Paris 13 in the Computer Science Department of the Institut Universitaire de Technologie. Our environment is being developed to teach computer science (CS) English to CS French-speaking students, and will be extended to other languages for specific purposes such as, for example, English or French for banking, law, economics or medicine, where on-line resources are available.English, and more precisely CS English is, for our students, a necessary tool, and not an object of study. The learning activities must therefore stimulate the students' interest and reflection about language phenomena. Our pedagogical objective, relying on research acquisition (Wokusch 1997) consists in linking various texts together with other documents, such as different types of dictionaries or other types of texts, so that knowledge can be acquired using various appropriate contexts.Language teachers are not supposed to be experts in fields such as computer sciences or economics. We aim at helping them to make use of the authentic documents that are related to the subject area in which they teach English. As shown in Foucou and Kübler (1998) the wide range of resources available on the Web can be processed to obtain corpora, i.e. teaching material. Our Web-based environment therefore provides teachers with a series of tools which enable them to access information about the selected specialist subject, select appropriate specialised texts, produce various types of learning activities and evaluate students' progress.Commonly used textbooks Tor specialised English offer a wide range of learning activities, but they are based on documents that very quickly become obsolete, and that are sometimes widely modified. Moreover, they are not adaptable to the various levels of language of the students. From the students' point of view, working on obsolete texts that are either too easy or too difficult can quickly become demotivating, not to say boring.In the next section, we present the general architecture of the teaching/learning environment; the method of accessing and using it, for teachers as well as for students, is then described. The following section deals with the actual production of exercises and their limits. We conclude and present some possible research directions.

scholarly journals Utilizing test items analysis to examine the level of difficulty and discriminating power in a teacher-made test

2021 ◽  
Vol 6 (2) ◽  
pp. 256
Author(s):  
Sayit Abdul Karim ◽  
Suryo Sudiro ◽  
Syarifah Sakinah
Keyword(s):  
Reading Comprehension ◽  
Junior High School ◽  
Test Item ◽  
English Language ◽  
Item Analysis ◽  
Quality Level ◽  
Test Items ◽  
Discriminating Power ◽  
Level Of Difficulty

Apart from teaching, English language teachers need to assess their students by giving a test to know the students� achievements. In general, teachers are barely conducting item analysis on their tests. As a result, they have no idea about the quality of their test distributed to the students. The present study attempts to figure out the levels of difficulty (LD) and the discriminating power (DP) of the multiple-choice (MC) test item constructed by an English teacher in the reading comprehension test utilizing test item analysis. This study employs a qualitative approach. For this purpose, a test of 50-MC test items of reading comprehension was obtained from the students� test results. Thirty-five students of grade eight took part in the MC test try-out. They are both male (15) and female (20) students of junior high school 2 Kempo, in West Nusa Tenggara Province. The findings revealed that16 items out of 50 test items were rejected due to the poor and worst quality level of difficulty and discriminating index. Meanwhile, 12 items need to be reviewed due to their mediocre quality, and 11 items are claimed to have good quality items. Besides, 11 items out of 50 test items were considered as the excellent quality as their DP scores reached around 0.44 through 0.78. The implications of the present study will shed light on the quality of teacher-made test items, especially for the MC test.

scholarly journals Pengembangan tes membaca bahasa Indonesia berbasis web bagi mahasiswa Thailand di Universitas Negeri Yogyakarta

LingTera ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 91-99
Author(s):  
Aleeyah Masae
Keyword(s):  
Reading Comprehension ◽  
Test Reliability ◽  
Choice Test ◽  
Elementary Level ◽  
Average Score ◽  
Web Based ◽  
Test Items ◽  
Thai Students ◽  
Bahasa Indonesia ◽  
The Web

Penelitian ini bertujuan untuk menghasilkan instrumen tes hasil belajar pemahaman membaca Bahasa Indonesia berbasis web yang dapat digunakan oleh mahasiswa Thailand tingkat dasar. Subjek yang terlibat dalam uji coba adalah 12 mahasiswa Thailand yang kuliah di Universitas Negeri Yogyakarta (UNY). Uji coba tes berjumlah tiga orang, sedangkan uji coba kelayakan web berjumlah sembilan orang. Data yang digali dalam penelitian ini adalah data dari angket dan data uji coba tes. Data dari angket menggunakan teknik analisis deskriptif kuantitatif dan data uji coba tes analisis menggunakan program ITEMAN. Hasil penelitian ini adalah sebagai berikut: (1) Proses pengembangan UKBIPUTH berbasis web terdiri atas dua tahap, yaitu tahap pengembangan tes dan pengembangan web. Tahap pengembangan tes diawali dengan penyusunan kisi-kisi, menyusun butir-butir soal dan ditelaah butir tes oleh ahli serta merevisi, uji coba tes, dan analisis butir tes. Selanjutnya tahap pengembangan web diawali dengan mendesain flowchart dan storyboard serta pembuatan produk, kemudian produk divalidasi oleh ahli media, uji coba skala kecil, dan uji coba skala besar; (2) Karakteristik tes pilihan ganda, tes benar/salah, dan tes menjodohkan memiliki validitas isi tes baik dan koefisien reliabilitas tes masing-masing kategori tinggi. Analisis butir tes berdasarkan tingkat kesukaran butir tes baik dan efektivitas pengecoh butir tes baik; (3) Hasil penilaian dari aspek tampilan web dengan berkategori baik; (4) Hasil penilaian dari aspek sistem web dengan berkategori baik. Developing web-based Indonesian language reading test for Thai students at the Universitas Negeri Yogyakarta AbstractThis study aims to develop an elementary level web-based Indonesian reading comprehension test for Thai students. The data collection instruments included evaluation sheets for the material and media experts and questionnaires to individual students on the field trials. The test items were analysed using the Iteman. The quantitative descriptive analysis technique was used to analyse the data. The results of this study are as follows: (1) The process of developing the web-based UKBIPUTH is done in two steps; they are the development of test and the development of web. The development of test was started by developing test items and later validated by the experts, test try-out, and finally test items analysis; (2) Characteristics of the multiple-choice test, true-false test, and matching test are described as follows: the content validation was good and the test reliability of Alpha respectively 0.748, 0.762, and 0.772. Based on the analysis by using ITEMAN item, the tests have a good difficulty index and the effectiveness of the test items distractors are good because the distractors work well; (3) The final product gets the evaluation in the aspect of appearance which is categorized ‘good’ with an average score of 3.80; (4) The final product gets the evaluation in the system aspects is categorized as ‘good’ with an average score of 4.10. The web-based test tool, UKBIPUTH is fit to be used to measure elementary level Indonesian reading comprehension of Thai students.

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