The aim of this study is to investigate the effects of learning styles and cooperative learning on academic achievement of technical university students in calculus. Meanwhile, in order to understand the effectiveness of learning on calculus, we perform item analysis of calculus test conducted in terms of item difficulty and item discrimination analysis. This research is conducted on a quasi-experimental design. Participants in this study are selected from the first year students of two departments in a technical university. Two intact classes of the same department are randomly assigned to be an experimental group and a control group. The experimental group receives the cooperative learning while the other receives the traditional learning. The results show that the learning achievement of active learners is better than reflective learners in the experimental group of information management. On the contrary, the reflective learners have better learning achievement than active learners in the experimental group of computer science and information engineering. The learning achievement of the experimental group is better than the control group in department of information management. The result is opposite in department of computer science and information engineering. But the differences of the learning achievement mentioned above are not statistically significant. Furthermore, item difficulty analysis suggests teachers and students should pay more attentions to those more difficult items and the corresponding calculus sections.

The aim of this study was to investigate the quality of the Annual National Assessment (ANA) Grade 6 mathematics instrument including its design, with reference to a single education district. The main question that was investigated was: To what extent does the 2012 Annual National Assessment Grade 6 mathematics assessment instrument provide meaningful information for making appropriate interpretations on district level? The conceptual framework underpinning this study was drawn from the Queensland Studies Authorities Assessment Policy document. The research comprised a secondary analysis design applying mixed methods using the scripts of 546 learners in one district from 5 schools selected to represent a range of achievement. A content analysis of the instrument was undertaken, followed by a statistical item analysis applying the Rasch measurement model. These analytical methods were utilised to determine the quality of the ANA Grade 6 mathematics instrument. Content validity, construct validity and reliability was investigated in order to evaluate inferences that were made and actions that were taken based upon the mathematics performance of learners in Grade 6 in the Gauteng North District (GND) in the year 2012. The investigation revealed that construct validity and content validity were largely achieved, as items were appropriately aligned to the 2012 ANA Grade 6 mathematics curriculum. However errors in mathematics and language formulation detracted from the validity of the instrument. In the case of some items, lack of clarity may have confused learners. As far as reliability is concerned the investigation revealed that the instrument had a reasonable person separation index, a measure of both item and person reliability. However, these conclusions are based on a relatively small sample from only one district and therefore has somewhat limited applicability but is nevertheless of educational consequence. / Dissertation (MEd)--University of Pretoria, 2017. / Science, Mathematics and Technology Education / MEd / Unrestricted

Multiple-choice questions are acknowledged to be difficult for both English mother-tongue and second-language university students to interpret and answer. In a context in which university tuition policies are demanding explicitly that assessments need to be designed and administered in such a way that no students are disadvantaged by the assessment process, the thesis explores the fairness of multiple-choice questions as a way of testing second-language students in South Africa. It explores the extent to which two multiple-choice Linguistics examinations at Unisa are in fact ‘generally accessible’ to second-language students, focusing on what kinds of multiple-choice questions present particular problems for second-language speakers and what contribution linguistic factors make to these difficulties. Statistical analysis of the examination results of two classes of students writing multiple-choice exams in first-year Linguistics is coupled with a linguistic analysis of the examination papers to establish the readability level of each question and whether the questions adhered to eight item-writing guidelines relating to maximising readability and avoiding negatives, long items, incomplete sentence stems, similar answer choices, grammatically non-parallel answer choices, ‘All-of-the-above’ and ‘None-of-the-above’ items. Correlations are sought between question difficulty and aspects of the language of these questions and an attempt is made to investigate the respective contributions of cognitive difficulty and linguistic difficulty on student performance. To complement the quantitative portion of the study, a think-aloud protocol was conducted with 13 students in an attempt to gain insight into the problems experienced by individual students in reading, understanding and answering multiple-choice questions. The consolidated quantitative and qualitative findings indicate that among the linguistic aspects of questions that contributed to question difficulty for second language speakers was a high density of academic words, long items and negative stems. These sources of difficulty should be addressed as far as possible during item-writing and editorial review of questions.

Multiple-choice questions are acknowledged to be difficult for both English mother-tongue and second-language university students to interpret and answer. In a context in which university tuition policies are demanding explicitly that assessments need to be designed and administered in such a way that no students are disadvantaged by the assessment process, the thesis explores the fairness of multiple-choice questions as a way of testing second-language students in South Africa. It explores the extent to which two multiple-choice Linguistics examinations at Unisa are in fact ‘generally accessible’ to second-language students, focusing on what kinds of multiple-choice questions present particular problems for second-language speakers and what contribution linguistic factors make to these difficulties. Statistical analysis of the examination results of two classes of students writing multiple-choice exams in first-year Linguistics is coupled with a linguistic analysis of the examination papers to establish the readability level of each question and whether the questions adhered to eight item-writing guidelines relating to maximising readability and avoiding negatives, long items, incomplete sentence stems, similar answer choices, grammatically non-parallel answer choices, ‘All-of-the-above’ and ‘None-of-the-above’ items. Correlations are sought between question difficulty and aspects of the language of these questions and an attempt is made to investigate the respective contributions of cognitive difficulty and linguistic difficulty on student performance. To complement the quantitative portion of the study, a think-aloud protocol was conducted with 13 students in an attempt to gain insight into the problems experienced by individual students in reading, understanding and answering multiple-choice questions. The consolidated quantitative and qualitative findings indicate that among the linguistic aspects of questions that contributed to question difficulty for second language speakers was a high density of academic words, long items and negative stems. These sources of difficulty should be addressed as far as possible during item-writing and editorial review of questions.

L'évaluation d'un objet est intrinsèquement liée à la définition que l'on pose de celui-ci. Si à un certain niveau de généralité, ce qu'est comprendre un texte semble aller de soi, une recension des travaux en psychologie cognitive, du développement, en didactique, en sociolinguistique, montre au contraire le caractère polymorphe de cet objet qu'on peine à définir. Dès lors, comment évaluer ce que l'on peine à circonscrire, même par exclusion ? Toujours dans le but de cerner ce qu'on entend par compréhension, nous avons mené quatre enquêtes. La première repose sur des entretiens avec des enseignants autour d'une épreuve (texte + questions), en vue de décrire leur manière de se représenter la compréhension et ses difficultés. La deuxième, centrée sur l'analyse des questions repose sur la constitution et une première analyse d'un corpus d'environ 200 questions proposées lors d'évaluations nationales sur la compréhension de textes narratifs. Analyser les questions ne pouvant se faire sans prendre en compte l'activité de réponse, nous avons proposé ensuite deux expériences. La première procède d'une sorte de raisonnement par « l'absurde »: peut-on répondre à des questionnaires de compréhension sans le texte y afférant ? La seconde a pour but de cerner les spécificités des épreuves, en proposant aux mêmes élèves quatre tâches (rappel, reconnaissance, jugement d'importance et QCM) sur deux textes différents. Ces analyses convergent pour montrer que chaque tâche donne un portrait différent de la compréhension et que l'on passe parfois rapidement d'une compréhension d'un texte à la compréhension de textes. / The evaluation of an object is intrinsically linked to the way one defines it. In seeking to define narrative texts comprehension, we have educed multiple facets of this process: cognitiv psychology, psychology of development, didactics, sociolinguistics, which each in their way clarifies an aspect of texts comprehension. This being the case, how can an object so polymorphous be evaluated? To properly understand the functioning of MCQs, the most common method for evaluating texts comprehension, we have undertaken four separate investigations. The first was based on interviews with teachers about a given examination (text plus questions), with the aim of being able to formulate how one depicts texts comprehension and its difficulties. The second investigation, centered on the analysis of questions, was based on the constitution of a corpus of about 200 questions used in nationwide tests of narrative texts comprehension , and a first-level analysis. Analyzing questions necessitates taking into consideration the activity of replying to questions, so we developed two further experiments. The first proceeded from a sort of "reasoning by the absurd": can one reply to questions without cognizance of the corresponding text? The second aimed to identify the specificities of tests, by proposing to the same students four tasks (recall, recognition, relative importance judgments and QMCs) for two different texts. These analyses converge to demonstrate that each kind of task generates a specific profile view of texts comprehension, and that sometimes one passes rapidly from the comprehension of a given text to the general texts comprehension reading competencies.

Job Satisfaction of employees is the most important topic in organization today. There are many scles to measure the degree of employees¡¦ satisfaction. But it also has some problems. To resolve these issues, the study uses item analysis and factor analysis to reconstruct a new job satisfaction scale with 6 subscales and 33 items. Finally the study uses structural equation modeling (SEM) to confirm the new scale. The findings indicate that the six subscales and 33 items job satisfaction scale is a reasonable and an accurate measurement model. The scale includes ¡§Job Achievement¡¨, ¡§Payroll Satisfation¡¨, ¡§Supervision Satisfaction¡¨, ¡§Job Support¡¨, ¡§Coworkers Satisfaction¡¨, and ¡§Promotion Satisfaction¡¨. The study wishes that the reconstruction of Job Satisfaction Scale can be a useful tool in Taiwan.

This study used an item-based approach to explore the full range of lexical-semantic (word frequency and imageability) and sublexical characteristics (regularity and consistency) of stimulus items. Oral reading and spelling-to-dictation data from 72 adults with acquired alexia/agraphia due to stroke or progressive aphasia were analyzed to determine unique influences of lexical-semantic and sublexical variables on performance. Multiple regression analyses were performed for each etiology and lesion group (i.e., perisylvian stoke, extrasylvian stroke, perisylvian atrophy, and extrasylvian atrophy). As expected, word frequency had a significant influence on reading and spelling performance in almost all contexts. Of particular interest was the consistent finding that written language performance associated with left perisylvian damage was moderated primarily by lexical-semantic features of stimuli (frequency and imageability), whereas performance by those with left extrasylvian damage was strongly influenced by sublexical features of sound-spelling regularity and, to a lesser extent, consistency.

No description available.

The paper deals with a justifiability of the application of statistics in the process of test development. It also aims to show possibilities of its application on the final test version. The first part of the thesis brings up the fundamentals of test development theory. The second part aims to describe general impact of statistics application on the test qualities. It further focuses on item analysis as one of the tool to evaluate test items qualities. Among others it includes information about reliability and validity analysis so as about the test equating methods. The analytical part contains analysis conducted on the OSP test. The analytical part also deals with predicted test validity and with the quality level of data gained from pre-testing.

Thesis (Ph.D. (Education))--North-West University, Potchefstroom Campus, 2008