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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

An Examination of the Psychometric Properties of the Trauma Inventory for Partners of Sex Addicts (TIPSA)

Stokes, Steven Scott 01 July 2017 (has links)
This study examined the psychometric properties of the Trauma Inventory for Partners of Sex Addicts (TIPSA). Using the Nominal Response Model (NRM), I examined several aspects of item and option functioning including discrimination, empirical category ordering, and information. Category Boundary Discrimination (CBD) parameters were calculated to determine the extent to which respondents distinguished between adjacent categories. Indistinguishable categories were collapsed through recoding. Empirically disordered response categories were also collapsed through recoding. Findings revealed that recoding solved some technical functioning issues in some items, and also revealed items (and perhaps option anchors) that were probably poorly conceived initially. In addition, nuisance or error variance was reduced only marginally by recoding, and the relative standing of respondents on the trait continuum remained largely unchanged. Items in need of modification or removal were identified, and issues of content validity were discussed.
72

A generalized partial credit FACETS model for investigating order effects in self-report personality data

Hayes, Heather 05 July 2012 (has links)
Despite its convenience, the process of self-report in personality testing can be impacted by a variety of cognitive and perceptual biases. One bias that violates local independence, a core criterion of modern test theory, is the order effect. In this bias, characteristics of an item response are impacted not only by the content of the current item but also the accumulated exposure to previous, similar-content items. This bias is manifested as increasingly stable item responses for items that appear later in a test. Previous investigations of this effect have been rooted in classical test theory (CTT) and have consistently found that item reliabilities, or corrected item-total score correlations, increase with the item's serial position in the test. The purpose of the current study was to more rigorously examine order effects via item response theory (IRT). To this end, the FACETS modeling approach (Linacre, 1989) was combined with the Generalized Partial Credit model (GPCM; Muraki, 1992) to produce a new model, the Generalized Partial Credit FACETS model (GPCFM). Serial position of an item serves as a facet that contributes to the item response, not only via its impact on an item's location on the latent trait continuum, but also its discrimination. Thus, the GPCFM differs from previous generalizations of the FACETS model (Wang&Liu, 2007) in that the item discrimination parameter is modified to include a serial position effect. This parameter is important because it reflects the extent to which the purported underlying trait is represented in an item score. Two sets of analyses were conducted. First, a simulation study demonstrated effective parameter recovery, though measurements of error were impacted by sample size for all parameters, test length for trait level estimates, and the size of the order effect for trait level estimates, and an interaction between sample size and test length for item discrimination. Secondly, with respect to real self-report personality data, the GPCFM demonstrated good fit as well as superior fit relative to competing, nested models while also identifying order effects in some traits, particularly Neuroticism, Openness, and Agreeableness.
73

Teoria de resposta ao item aplicada no ENEM / Theory of response to the item applied in the ENEM

Costa, Sidney Tadeu Santiago 03 March 2017 (has links)
Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-03-15T17:36:59Z No. of bitstreams: 2 Dissertação - Sidney Tadeu Santiago Costa - 2017.pdf: 1406618 bytes, checksum: 291719e6f7eaaff496ec405e241ce518 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-03-20T12:39:15Z (GMT) No. of bitstreams: 2 Dissertação - Sidney Tadeu Santiago Costa - 2017.pdf: 1406618 bytes, checksum: 291719e6f7eaaff496ec405e241ce518 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-03-20T12:39:15Z (GMT). No. of bitstreams: 2 Dissertação - Sidney Tadeu Santiago Costa - 2017.pdf: 1406618 bytes, checksum: 291719e6f7eaaff496ec405e241ce518 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-03-03 / With the note gotten in the Exame Nacional do Ensino Médio - ENEM the students can applay the vacant in diverse public institutions of superior education and programs of the government, for example, the program Universidade para Todos(Prouni) and the Fundo de Financiamento Estudantil (Fies). The ENEM uses a methodology of correction of the objective questions called Theory of Reply to the Item - TRI, that has some aspects that are different of the Classic Theory of the Tests - TCT. The main factor that determines the result of a citizen in a avaliativo process where if uses the TCT, is the number of correct answers, while in the TRI, beyond the amount of rightnesss is basic if to analyze which answers they are correct. The objective of this work is to explain what it is the TRI and as if it applies this methodology in evaluations of wide scale. A historical boarding of the logistic models used by the TRI and the justification of the existence of each parameter will be made that composes the main equation of the modeling. To determine each parameter that composes the model of the TRI and to calculate the final note of each candidate, a procedure of called optimization will be used Method of Maximum Probability - MMV. The computational tools in the work had been software R, with packages developed for application of the TRI and the Visual programming language beginner’s all-purpose symbolic instruction code to program functions, called as macros, in electronic spread sheets. / Com a nota obtida no Exame Nacional do Ensino Médio - ENEM os estudantes podem se candidatar a vagas em diversas instituições públicas de ensino superior e programas do governo, por exemplo, o programa Universidade para Todos (Prouni) e o Fundo de Financiamento Estudantil (Fies). O ENEM utiliza uma metodologia de correção das questões objetivas denominada Teoria de Resposta ao Item - TRI, que possui vários aspectos que são diferentes da Teoria Clássica dos Testes - TCT. O principal fator que determina o resultado de um sujeito em um processo avaliativo onde se utiliza a TCT, é o número de respostas corretas, enquanto na TRI, além da quantidade de acertos é fundamental se analisar quais respostas estão corretas. O objetivo deste trabalho é explicar o que é a TRI e como se aplica essa metodologia em avaliações de larga escala. Será feita uma abordagem histórica dos modelos logísticos utilizados pela TRI e a justificativa da existência de cada parâmetro que compõe a equação principal da modelagem. Para determinar cada parâmetro que compõe o modelo da TRI e calcular a nota final de cada candidato, será utilizado um procedimento de otimização denominado Método da Máxima Verossimilhança - MMV. As ferramentas computacionais no trabalho foram o software R, com pacotes desenvolvidos para aplicação da TRI e a linguagem de programação Visual Basic para programar funções, denominadas como macros, em planilhas eletrônicas.
74

Investigating Parameter Recovery and Item Information for Triplet Multidimensional Forced Choice Measure: An Application of the GGUM-RANK Model

Lee, Philseok 07 June 2016 (has links)
To control various response biases and rater errors in noncognitive assessment, multidimensional forced choice (MFC) measures have been proposed as an alternative to single-statement Likert-type scales. Historically, MFC measures have been criticized because conventional scoring methods can lead to ipsativity problems that render scores unsuitable for inter-individual comparisons. However, with the recent advent of classical test theory and item response theory scoring methods that yield normative information, MFC measures are surging in popularity and becoming important components of personnel and educational assessment systems. This dissertation presents developments concerning a GGUM-based MFC model henceforth referred to as the GGUM-RANK. Markov Chain Monte Carlo (MCMC) algorithms were developed to estimate GGUM-RANK statement and person parameters directly from MFC rank responses, and the efficacy of the new estimation algorithm was examined through computer simulations and an empirical construct validity investigation. Recently derived GGUM-RANK item information functions and information indices were also used to evaluate overall item and test quality for the empirical study and to give insights into differences in scoring accuracy between two-alternative (pairwise preference) and three-alternative (triplet) MFC measures for future work. This presentation concludes with a discussion of the research findings and potential applications in workforce and educational setting.
75

Integrating imago relationship therapy (irt) into a biblical theological approach to marriage counselling

Beukes, F.R.D. January 2013 (has links)
Magister Artium - MA / As a minister who is deeply involved in Christian counselling I am constantly reminded just how many problems marriages are facing today. There is no question that the failure of this fundamental relationship has unquantifiable devastating results in the lives of couples, their children, and society as a whole. The more one works with people one realises that many couples in relationships are just hurting individuals in search of happiness and wholeness. Marriage provides the perfect relationship with elaborate promises and expectations of love and warmth, where all needs and dreams are to be met by the husband or wife. Sadly, however, as substantiated by divorce statistics, too many couples find this sacred space intended for love and fulfilment become the most vulnerable, unsafe space. As a minister searching for a systematic process to unravel this mystery of failed or failing marriages, I discovered a psycho-social model for therapy, called Imago Relationship Therapy (IRT), which not only produced excellent counselling results, but also seemed compatible with more theological approaches to couples therapy. IRT unravels for me the “why” and gives me a quantifiable aspect to my work which helps me grasp conceptually that which I instinctively have discovered and known theologically. I have embarked on this research, firstly, to understand the problem and the extent thereof facing our society; secondly to identify the strengths and shortcomings in Pastoral Care theory and praxis (such as the recurring problem of a realistic and workable Biblical counselling model for pastors), and thirdly to investigate the feasibility whether and how the Imago Relationship Theory could be integrated in Pastoral Care praxis. The intention was, and remains, that after I have done this research to make it available, in appropriate format, to help pastors in assisting couples to avoid pitfalls in their marriages. In turn, it is hoped that this new found perspective would also benefit the pastor and his wife, since many pastors find their marriages also under strain. Every pastor who works with the lives of congregants understands the volatility of relationships. This understanding has been built over long periods of time with them and he has witnessed how their lives have morphed under pressure due to problems that at times have been overwhelming. Sadly some of the pain is self-inflicted or has been inflicted upon them. As one delves into this subject matter one becomes aware of just how inadequately equipped some pastors really are and how important it is to equip them to effectively help others. I chose to examine Imago Relationship Therapy (IRT), knowing its efficacy, and wondered how this would fit into a Pneumatological counselling model. Various practical theologians (such as DJ Louw and JJ Rebel) have recently been discovering Pneumatology – the reflection on the work of the Holy Spirit, through whom the work of God the Father and God the Son is being applied and appropriated in the person, in the congregation, and in the fullness of life in the world – as the framework for practical theology, especially Pastoral Care. I thus deliberately explored Pneumatology as such a theological Sitz im Leben for reflecting on IRT integrated into a Biblical model for counselling. I needed an affective therapeutic model which would could be integrated, and enhance the biblical framework in counselling. Furthermore this therapeutic mechanism needed to be subservient to attain the greatest goal of God and that is to serve and help transform humankind created in His Image. I conducted a systematic literature review of IRT and relevant theological insights from Pastoral Care theory. This investigation is to establish the viability of an integration of IRT into a Pneumatological Pastoral Care theory and praxis to be used as a Pastoral Tool for ministers dealing with the crisis of broken marriages. It was surprising to see how well IRT fits into the theological framework and can enhance an already effective psychological therapy process.
76

FNs barnkonvention - en trojansk häst : En kvalitativ textanalys på hur FNs kriskommunikation speglar deras värderingar.

Marcusson, Sofia, Pettersson-Lumbreras, Madeleine January 2022 (has links)
The purpose of this paper was to examine, through a crisis communication approach, how the UN intergovernmental organization acts during a crisis and whether their strategies are in symbiosis with their core values and conventions. As the majority of crisis communication research is based on governmental or commercial organizations, there is a lack of knowledge in how intergovernmental organizations behave during a crisis. The authors have chosen to juxtapose the organization's conventions with their crisis communication in order to analyze whether this is a factor that plays a role in the aftermath of the crisis.  In this study, the authors have used the 2014 UN sex scandal in the Central African Republic as the foundation to this thesis where a number of children were sexually abused by UN forces. The conventions that the authors have applied to the study are the UN Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment and the UN Convention on the Rights of the Child. The study shows that the UN chooses to handle the crisis differently depending on who the recipient is. Three distinct communicative crisis strategies emerged from the findings.  UN internal management - Internal communication within the UN's inner circle shows a culture of silence and trying to hide evidence to prevent the crisis from coming out to the public. They are going against their conventions and their own charters on transparency and their convention on the rights of the child. This is demonstrated on several occasions in their internal communications.  Internal UN - internally, the UN admits that the crisis and scandal in the Central African Republic has happened. By sending out newsletters and holding crisis meetings about what has happened, the UN is meeting its own conventions and demonstrating transparency within the organization while trying to prevent the crisis from leaking out to the public. Public - The UN chooses not to face the crisis in public. Instead, they choose to highlight their good work and build on the illusion of truth that exists in the public.  If an organization is harping on the crisis as the UN has done, then according to the prominent Crisis Communication Theories, they should not be able to get away with it without it affecting their reputation. This happens because the UN has a monopoly as a peacekeeping organization. Thanks to this monopoly, they do not have to deal with crises in public as their stakeholders and brand identity are tightly knit. This, together with their active efforts to highlight all the good work they do, ensures that there are no major issues in the organization when scandals occur. / Syftet med denna uppsats var att genom ett kriskommunikativ ansats undersöka hur den mellanstatlig organisationen FN agerar under en kris och om deras strategier är i symbios med deras grundvärderingar och konventioner. Då majoriteten av kriskommunikationsforskningen utgår från statliga eller kommersiella företag så finns en viss kunskapslucka i hur mellanstatliga organisationer beter sig under en kris. Författarna har valt att ställa organisationens konventioner mot deras kriskommunikation för att kunna analysera om det är en inspelande faktor som spelar roll i krisens efterföljder.  Författarna har i denna studie utgått från FNs sexskandal från 2014 i Centralafrikanska republiken där ett flertal barn blev sexuellt utnyttjade av FNs styrkor. Konventionerna som författarna har applicerat på studien är FNs konvention mot tortyr och annan grym, omänsklig eller förnedrande behandling eller bestraffning och FNs barnkonvention. Studien visar på att FN väljer att hantera krisen olika beroende på vem mottagaren är. Tre tydliga kommunikativa krisstrategier framträdde i resultatet.  FNs interna ledning - Den interna kommunikationen inom FNs inre krets visar på en tysthetskultur och försök till röja undan bevis för att förhindra att krisen kommer ut till allmänheten. De går emot sina konventioner och egna stadgar om transparens och om barns rättigheter. Detta påvisas vid flera tillfällen i deras interna kommunikation.  Internt FN - internt medger FN att krisen och skandalen i Centralafrikanska republiken har skett. Genom att skicka ut nyhetsbrev och ha krismöten om det som skett möter FN sina egna konventioner och visar på en transparens inom organisationen samtidigt som de försöker förhindra krisen.  Allmänhet - FN väljer att inte möta krisen i allmänheten. De väljer istället att belysa sitt goda arbete och bygger på den sannings illusion som finns hos allmänheten.  Om en organisation hanterar krisen som FN har gjort så ska de enligt Kriskommunikationsforskningen inte kunna komma undan utan att de märks på deras anseende. Detta sker eftersom FN har monopol som fredsbevarande organisation. Tack vare monopolet behöver de inte hantera kriser offentligt då deras stakeholders och brand identity är hårt sammansvetsade. Det tillsammans med deras aktiva arbetet att belysa allt bra arbete de gör, inger att det inte blir stora sprickor för organisationen när skandaler sker.
77

A Monte Carlo Investigation of Fit Statistic Behavior in Measurement Models Assessed Using Limited-and Full-Information Estimation

Bodine, Andrew James 08 October 2015 (has links)
No description available.
78

Contextual Differential Item Functioning: Examining the Validity of Teaching Self-Efficacy Instruments Using Hierarchical Generalized Linear Modeling

Zhao, Jing 19 July 2012 (has links)
No description available.
79

Impacts of Ignoring Nested Data Structure in Rasch/IRT Model and Comparison of Different Estimation Methods

Chungbaek, Youngyun 06 June 2011 (has links)
This study involves investigating the impacts of ignoring nested data structure in Rasch/1PL item response theory (IRT) model via a two-level and three-level hierarchical generalized linear model (HGLM). Currently, Rasch/IRT models are frequently used in educational and psychometric researches for data obtained from multistage cluster samplings, which are more likely to violate the assumption of independent observations of examinees required by Rasch/IRT models. The violation of the assumption of independent observation, however, is ignored in the current standard practices which apply the standard Rasch/IRT for the large scale testing data. A simulation study (Study Two) was conducted to address this issue of the effects of ignoring nested data structure in Rasch/IRT models under various conditions, following a simulation study (Study One) to compare the performances of three methods, such as Penalized Quasi-Likelihood (PQL), Laplace approximation, and Adaptive Gaussian Quadrature (AGQ), commonly used in HGLM in terms of accuracy and efficiency in estimating parameters. As expected, PQL tended to produce seriously biased item difficulty estimates and ability variance estimates whereas almost unbiased for Laplace or AGQ for both 2-level and 3-level analysis. As for the root mean squared errors (RMSE), three methods performed without substantive differences for item difficulty estimates and ability variance estimates in both 2-level and 3-level analysis, except for level-2 ability variance estimates in 3-level analysis. Generally, Laplace and AGQ performed similarly well in terms of bias and RMSE of parameter estimates; however, Laplace exhibited a much lower convergence rate than that of AGQ in 3-level analyses. The results from AGQ, which produced the most accurate and stable results among three computational methods, demonstrated that the theoretical standard errors (SE), i.e., asymptotic information-based SEs, were underestimated by at most 34% when 2-level analyses were used for the data generated from 3-level model, implying that the Type I error rate would be inflated when the nested data structures are ignored in Rasch/IRT models. The underestimated theoretical standard errors were substantively more severe as the true ability variance increased or the number of students within schools increased regardless of test length or the number of schools. / Ph. D.
80

Fonctionnement de tâches discrètes et intégrées pour l'évaluation de la lecture en français langue seconde des nouveaux arrivants au Québec

Folny, Vincent V. 06 1900 (has links)
Cette recherche s’inscrit dans le cadre de l’évaluation des compétences langagières en français chez des adultes immigrants en vue de leur placement dans des cours de français. Elle porte sur la dimensionnalité, de même que sur la difficulté objective et subjective de tâches discrètes ou intégrées de compréhension écrite, à différents niveaux de maîtrise. Elle propose des analyses de l’estimation de la maîtrise linguistique en fonction de l’appartenance des candidats à des groupes linguistiques distincts. Pour mener à bien la recherche, un test de six textes et de 30 items a été créé. Il a été administré à 118 immigrants. Ces immigrants suivaient les cours de français proposés par le Ministère de l’immigration et des communautés culturelles du Québec (MICC) dans les écoles de langues de l’Université de Montréal et de l’Université du Québec à Montréal. Après administration, ce test a été soumis à des analyses portant sur la dimensionnalité et la difficulté des tâches discrètes et intégrées ainsi que sur les interactions entre ces tâches et les différents groupes de candidats. Des études plus précises ont été faites sur l’interaction entre le type de tâche, l’appartenance à un groupe linguistique pour des candidats et des items de niveau similaire. Enfin, des analyses ont permis d’étudier la perception de la difficulté des tâches par les candidats. L’étude, même si elle porte sur un test en rodage, permet de distinguer la dimensionnalité de tâches discrètes de celle de tâches intégrées. Elle permet également de constater les différences de fonctionnement entre ces deux types de tâches. Enfin, elle permet de comprendre l’interprétation de la difficulté par les candidats et, par ricochet, leur vision du test. In fine, des propositions sont formulées quant à l’opportunité d’utiliser des tâches discrètes et intégrées dans un test de positionnement adaptatif en français langue seconde. / This research has been conducted within the assessment procedure of the language competence of adult immigrants, for placement purposes in French courses. It relates to the dimensionality as well as the objective and subjective difficulty of discrete or integrated reading tasks at different proficiency levels. Analyses of linguistic proficiency estimates are proposed in relation with candidates’ linguistic groups. In order to conduct this study successfully, a 6-text and 30-item test has been constructed and administered to 118 immigrants. These immigrants were enrolled in French courses offered by the Ministry of Immigration and Cultural Communities (MICC) in language schools at the Université de Montreal and the Université du Québec à Montréal. After the administration, analyses have been made on the dimensionality and difficulty of the discrete and integrated tasks and on the interactions between the tasks and different groups of candidates. More detailed analyses have been made on candidates and items at similar levels. Finally, we were able to study the candidates’ perceptions of task difficulty. Although the study is based on a provisional test, the dimensionality of discrete and integrated tasks has been distinguished. Differences in the way the 2 types of task work have been shown. Finally, the candidates’ interpretation of difficulty and therefore, their view of the test, are better understood. In fine, proposals are made in regard with the proper use of discrete and integrated tasks in an adaptive placement test in second language.

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