Effects of automatic item eliminations based on item test analysis

2007 ◽  
Vol 31 (3) ◽  
pp. 247-252
Author(s):  
Jaap H. J. Muntinga ◽  
Henk A. Schuil
Keyword(s):  
The Other ◽  
Cohort Effects ◽  
Test Results ◽  
Test Analysis ◽  
Course Content ◽  
Elimination Procedure ◽  
Item Statistics ◽  
Second Year ◽  
Automatic Elimination

Item test analysis is an aid to identify items that need to be eliminated from an assessment. An automatic elimination procedure based on item statistics, therefore, could help to increase the quality of a test in an objective manner. This was investigated by studying the effect of a standardized elimination procedure on the test results of a second-year course over a period of 6 successive years in 1,624 candidates. Cohort effects on the item elimination were examined by determining the number of additional items that had to be eliminated from three different tests in 3 successive academic years in two cohorts. The items that were part of more than one test and had to be eliminated according to the procedure in at least one of the tests appeared to have to be retained according to the same procedure in most of the other tests. The procedure harmed the high scoring students relatively more often than the other students, and the number of eliminated items appeared to be cohort dependent. As a consequence, automatic elimination procedures obscure the transparency of the grading process unacceptably and transform valid tests into inadequate samples of the course content.

scholarly journals Post-operative budesonide irrigations for patients with polyposis: a blinded, randomized controlled trial

2015 ◽  
Vol 53 (3) ◽  
pp. 227-234
Author(s):  
Rounak B. Rawal ◽  
Allison M. Deal ◽  
Charles S. Ebert Jr. ◽  
Vishal H. Dhandha ◽  
Candace A. Mitchell ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Functional Endoscopic Sinus Surgery ◽  
The Other ◽  
Sinus Surgery ◽  
Test Results ◽  
Randomized Controlled ◽  
Single Blind ◽  
Snot 22

Objective: To compare normal saline (NS) vs. NS+budesonide irrigations in post- functional endoscopic sinus surgery (FESS) patients with chronic rhinosinusitis with polyposis (CRSwNP). Currently, no evidence exists for NS+budesonide irrigation over NS irrigation alone. Study design: Prospective, single-blind, randomized controlled trial. Methods: Subjects were prospectively enrolled to NS or NS+budesonide arms. Patients were evaluated at pre-operative and three post-operative visits (POV): POV1 (1-2 weeks post-op), POV2 (3-8 weeks post-op), and POV3 (3-6 months post-op). Patients were evaluated by three quality of life (QOL) questionnaires (SNOT-22, RSOM-31, and RSDI) and two olfaction scores (UPSIT and the PEA test). Results: Fifty patients were randomized, with 25 patients in the NS arm and 25 patients in the NS+budesonide arm. Two patients had unexpected pathology and were excluded from the study. By POV2 and POV3, patients experienced a significant improvement in all three QOL surveys, although the degree of improvement between arms was not significant up through POV3. Neither arm experienced significant olfactory improvement up through POV3. Conclusions: While both NS and NS+budesonide treatments improve QOL for post-FESS patients, neither intervention significantly increases QOL as compared to the other. Olfaction was not significantly improved in either treatment group.

Influence of Recycled Aggregate Quality on Recycled Concrete

2015 ◽  
Vol 1106 ◽  
pp. 45-48 ◽  
Author(s):  
Magdaléna Šefflová ◽  
Tereza Pavlů
Keyword(s):  
Negative Influence ◽  
Recycled Concrete ◽  
The Other ◽  
Recycled Aggregate ◽  
Test Results ◽  
The Czech Republic ◽  
Natural Aggregate ◽  
Concrete Mixtures ◽  
Reference Mixture

This article deals with the influence of recycled aggregate quality on recycled concrete. Replacement of natural aggregate by recycling aggregate has a negative influence on the properties of concrete. Three types of recycled aggregate were used for the production of concrete. The samples of recycled aggregate were obtained from two recycling plants in the Czech Republic. The samples of recycled aggregate were tested by pycnometric method. From the test results, a different quality of recycled aggregate was discovered. For the testing of concrete, a total of eight concrete mixtures were made, one of which was a reference mixture and the natural aggregate was replaced by recycled aggregate of varying ratio in the other mixtures. Finally, it is possible to say that use of recycled aggregate in concrete influences the properties of concrete. This influence depends on the quality and amount of recycled aggregate in the concrete.

The Effect Of Canna Starch Substitution (Canna Edulis Kerr) On The Sensory Quality Of Tartlet

2020 ◽  
Vol 3 (2) ◽  
pp. 18-24
Author(s):  
Viona Monty Aprillya ◽  
Guspri Devi Artanti ◽  
Mariani
Keyword(s):  
Sensory Quality ◽  
Substitution Effect ◽  
Sweet Taste ◽  
Ash Content ◽  
State University ◽  
Test Results ◽  
Test Analysis ◽  
Food And Nutrition ◽  
Engineering State

This study aims to the effect of canna starch substitutes (Canna Edulis Kerr) with the sensory quality of the tartlets skin senses devouring aspects of color, taste, aroma and texture. This research was carried out in the Pastry dan Bakery Laboratory, Food and Nutrition Program, Faculty of Engineering, State University of Jakarta. This research was conducted a tartlet laboratory test with the analysis of the properties of water content and ash content. Then the sensory quality assesment carried out organoleptic tests conducted on 45 rather trained panelists. This research is using experimental method. The population in this study was the tartlet with the canna starch subtitution, while the sample was the skin of tartlet substitution canna starch with the percentage of 20%, 40% and 30%. Based on deskriptive analysis, the results of the tartlet hypotesis test analysis with 40% canna starch substitution have the highest average of 4,9, which is the criteria for cream color. In the taste aspect, tartlet with a starch substitution of 20% and 30% has the highest average of 3,7, which is the criteria of sweet taste. In the aspect of aroma, tartlet with 40% canna starch substitution has the highest average of 4,1, which is in the criteria flavor not have a canna scent. And in the aspect of texture, tartlet with 30% dan 40% canna starch substitution has the highest average of 4,3, which is on crispy teksture. Kruskal Wallis Test results showed no significant substitution effect of canna starch on the sensory quality of tartlet.

scholarly journals Effects of Accountability, Knowledge and Ethicson the Quality of Auditor's Workin KAP South Jakarta

2021 ◽  
Vol 58 (1) ◽  
pp. 350-365
Author(s):  
Khairul Saleh L. Tobing Et al.
Keyword(s):  
Data Collection ◽  
Causal Relationship ◽  
Multiple Regression ◽  
Test Results ◽  
Public Accounting ◽  
Test Analysis ◽  
Accounting Firm ◽  
The Public ◽  
Positive Effect

This research aims to find  causal relationship variables at the Public Accounting Firm in South Jakarta. Sampling is done by Nonprobbility sampling with Purposive Sampling. In measuring the sample used the Slovin formula with a significant level of 5%. Data collection techniques were carried out with a questionnaire consisting of 125 respondents and the questionnaire used was 122 questionnaires in accordance to the results of the measurement of the Slovin formula. Questionnaire test results show all valid and reliable instruments, such as analysis of normality, linearity, multicollinearity, and heteroscedasticity test. Analysis of the data used is multiple regression, simultaneous t-test and f-test. The test results show Accountability, knowledge and ethics have a positive effect on the work auditors

scholarly journals Model Digital Signature Pada Dokumen Formal Akademik

CICES ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 22-32
Author(s):  
Henderi Henderi ◽  
Devi Rositawati ◽  
Pipin Romansyah
Keyword(s):  
Business Process ◽  
Digital Signature ◽  
Model Development ◽  
The Other ◽  
Agile Methods ◽  
Test Results ◽  
Other Hand ◽  
Publishing Services ◽  
Design Construction

Digital signature system is implemented to improve the quality of document border services. A digital signature on a document means that the signatory knows and approves the document. On the other hand, previous research states that the digital signature model has weaknesses in terms of identifying and verifying the authenticity of the signature image. This study aims to develop a digital signature model with validation of the authenticity of good signatures and accelerate document binder services. The digital signature model was developed using modified agile methods. Model development is done through design, construction, testing, evaluation, and delivery. The test results show that the digital signature model developed in this study is proven to accelerate document publishing services with good validation and simplify the document publishing business process.

scholarly journals Features of the application of mathematical models of tests in the conditions of remote control

2020 ◽  
Vol 2 ◽  
pp. 105-116
Author(s):  
N.V. Kruglova ◽  
◽  
O.O. Dykhovychnyi ◽  
I.V. Alekseeva ◽  
◽  
...  
Keyword(s):  
Large Data ◽  
Large Data Sets ◽  
Data Sets ◽  
Test Results ◽  
Test Quality ◽  
Test Analysis ◽  
Objective Control ◽  
Object Of Study ◽  
Kyiv Polytechnic Institute

The paper explores one of the current issues of distance education - the quality of computer tests in terms of ensuring objective control of knowledge. This issue is especially important in today's pandemic and temporary quarantine. The main attention is paid to a statistical analysis of test quality based on test results using CTT and IRT methods. Using modern statistical methods, the authors analyzed the results of testing prepared and conducted during the quarantine period. As an object of study, a test on “Integration of functions of one variable” was chosen, which students completely mastered remotely. The tests were created on the basis of the MOODLE platform at Igor Sikorsky Kyiv Polytechnic Institute, by proffessors of the Department of Mathematical Analysis and Probability Theory. Data processing is carried out using a system for test analysis, created by the authors in the programming environment R. The system allows you to process tests in different areas: pedagogy, psychology, sociology, etc., different in structure; use both CTT and IRT apparatus; work with large data sets; to analyze not only test questions, but also respondents; more accurately differentiate respondents. Based on the study, the possibility of conducting electronic testing remotely was confirmed. The technology used in the study can be used to create and analyze the tasks of external evaluation, conducting session control during quarantine. The use of the methods studied in the work for the analysis of test tasks will increase the competence of high school teachers to conduct electronic remote testing.

Immunoferritin localization of intracellular antigens in positively stained frozen sections

1978 ◽  
Vol 36 (2) ◽  
pp. 168-169
Author(s):  
K. T. Tokuyasu
Keyword(s):  
Surface Tension ◽  
Water Surface ◽  
Thin Layers ◽  
The Other ◽  
Positive Staining ◽  
Frozen Sections ◽  
The Past ◽  
Ultrathin Frozen Sections ◽  
Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

PENERAPAN iLEARNING SURVEY (iSur) DALAM MENINGKATKAN KUALITAS SISTEM INFORMASI SELAMA PROSES PEMBELAJARAN DI PERGURUAN TINGGI RAHARJA

CCIT Journal ◽  
2014 ◽  
Vol 7 (3) ◽  
pp. 335-354
Author(s):  
Untung Rahardja ◽  
Muhamad Yusup ◽  
Ana Nurmaliana
Keyword(s):  
Higher Education ◽  
Student Satisfaction ◽  
Teaching And Learning ◽  
Online Survey ◽  
The Other ◽  
Learning Activities ◽  
Faculty Performance ◽  
Satisfaction Measurement ◽  
Valid Information

The accuracy and reliability is the quality of the information. The more accurate and reliable, the more information it’s good quality. Similarly, a survey, the better the survey, the more accurate the information provided. Implementation of student satisfaction measurement to the process of teaching and learning activities on the quality of the implementation of important lectures in order to get feedback on the assessed variables and for future repair. Likewise in Higher Education Prog has undertaken the process of measuring student satisfaction through a distributed questioner finally disemester each class lecture. However, the deployment process questioner is identified there are 7 (seven) problems. However, the problem can be resolved by the 3 (three) ways of solving problems one of which is a system of iLearning Survey (Isur), that is by providing an online survey to students that can be accessed anywhere and anytime. In the implementation shown a prototype of Isur itself. It can be concluded that the contribution Isur system can maximize the decision taken by the Higher Education Prog. By using this Isur system with questions and evaluation forms are submitted and given to the students and the other colleges. To assess the extent to which the campus has grown and how faculty performance in teaching students class, and can be used as a media Isur valid information for an assessment of activities throughout college.

Adding an expansive agent to increase the toughness of steel fibre reinforced concrete

2019 ◽  
Vol 26 (4) ◽  
pp. 197-208
Author(s):  
Leo Gu Li ◽  
Albert Kwok Hung Kwan
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
The Other ◽  
Fibre Reinforced Concrete ◽  
Test Results ◽  
Compressive Properties ◽  
Shrinkage Cracking ◽  
Steel Fibre Reinforced Concrete ◽  
Expansive Agent ◽  
Concrete Matrix

Previous research studies have indicated that using fibres to improve crack resistance and applying expansive agent (EA) to compensate shrinkage are both effective methods to mitigate shrinkage cracking of concrete, and the additions of both fibres and EA can enhance the other performance attributes of concrete. In this study, an EA was added to fibre reinforced concrete (FRC) to produce concrete mixes with various water/binder (W/B) ratios, steel fibre (SF) contents and EA contents for testing of their workability and compressive properties. The test results showed that adding EA would slightly increase the superplasticiser (SP) demand and decrease the compressive strength, Young’s modulus and Poisson’s ratio, but significantly improve the toughness and specific toughness of the steel FRC produced. Such improvement in toughness may be attributed to the pre-stress of the concrete matrix and the confinement effect of the SFs due to the expansion of the concrete and the restraint of the SFs against such expansion.

Implementasi Voip Server Berbasis IPV6 Dengan Raspberry PI

2019 ◽  
Vol 9 (01) ◽  
pp. 47-54
Author(s):  
Rabbai San Arif ◽  
Yuli Fitrisia ◽  
Agus Urip Ari Wibowo
Keyword(s):  
Internet Protocol ◽  
Wireless Transmission ◽  
Raspberry Pi ◽  
Test Results ◽  
Average Delay ◽  
Ipv6 Network ◽  
Ip Network ◽  
Selection Of ◽  
Better Than

Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity that can be used on the network, it needs to be applied to VoIP system using the IPv6 network protocol with supports devices. The test results by using a wired transmission medium that has obtained are the average delay is 117.851 ms, jitter is 5.796 ms, packet loss is 0.38%, throughput is 962.861 kbps, 8.33% of CPU usage and 59.33% of memory usage. The analysis shows that the wired transmission media is better than the wireless transmission media and wireless-wired.

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