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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.
1

A Multilevel Multitrait-Multimethod Analysis of the Child Behavior Checklist

Powell, Marvin 08 1900 (has links)
Behavioral and emotional problems (BEPs) are known to affect children's ability to shape and maintain effective social relationships. BEPs are typically categorized into two main factors: internalizing and externalizing behaviors. Internalizing behaviors represent introverted problems, directed inwardly to the individual. While externalizing behavior patterns represent behaviors that are directed outwardly. Behaviors, emotions and thoughts are experienced by all people but on a continuum rather than in terms of absence versus presence of the behavior. The child behavior checklist (CBCL) is used to measure BEPs. The system of CBCL (parent form) measures also includes a teacher rating form and a youth self-report. Using 62 teachers and 311 students, the present study assessed convergent and discriminant validity using a correlated trait, correlated method minus one [CT-C(M-1)] model. The results showed low to moderate teacher-student agreement on the traits. To extend the theoretical structure of the teacher and self-report forms, the present study assessed the nested structure of the data using a multilevel model. Results revealed the nested structure of the data should not be ignored.
2

Actionable Knowledge Discovery using Multi-Step Mining

DharaniK, Kalpana Gudikandula 01 December 2012 (has links)
Data mining at enterprise level operates on huge amount of data such as government transactions, banks, insurance companies and so on. Inevitably, these businesses produce complex data that might be distributed in nature. When mining is made on such data with a single-step, it produces business intelligence as a particular aspect. However, this is not sufficient in enterprise where different aspects and standpoints are to be considered before taking business decisions. It is required that the enterprises perform mining based on multiple features, data sources and methods. This is known as combined mining. The combined mining can produce patterns that reflect all aspects of the enterprise. Thus the derived intelligence can be used to take business decisions that lead to profits. This kind of knowledge is known as actionable knowledge. / Data mining is a process of obtaining trends or patterns in historical data. Such trends form business intelligence that in turn leads to taking well informed decisions. However, data mining with a single technique does not yield actionable knowledge. This is because enterprises have huge databases and heterogeneous in nature. They also have complex data and mining such data needs multi-step mining instead of single step mining. When multiple approaches are involved, they provide business intelligence in all aspects. That kind of information can lead to actionable knowledge. Recently data mining has got tremendous usage in the real world. The drawback of existing approaches is that insufficient business intelligence in case of huge enterprises. This paper presents the combination of existing works and algorithms. We work on multiple data sources, multiple methods and multiple features. The combined patterns thus obtained from complex business data provide actionable knowledge. A prototype application has been built to test the efficiency of the proposed framework which combines multiple data sources, multiple methods and multiple features in mining process. The empirical results revealed that the proposed approach is effective and can be used in the real world.
3

A Structural Equation Modeling Approach Combining Multitrait-Multimethod Designs with Moderated Mediation Analysis

Litson, Kaylee 01 August 2019 (has links)
Researchers who study clinical and developmental psychology are often interested in answering questions such as how interventions work, when treatment begins to improve health outcomes, or for whom treatment has the greatest impact. Answers to these and similar questions impact the general understanding of health and behavior, and can be imperative for effectively implementing intervention and prevention programs. To evaluate such complex relationships among variables, researchers have turned to moderated mediation analysis. Moderated mediation analysis is a statistical tool used to identify the conditional processes among observed or latent variables. However, in developmental and clinical psychology, variables are regularly measured using multiple sources or multiple methods. In fact, best practice recommendations in clinical psychology suggest measuring variables with multiple methods (Achenbach, 2006). The question arises how to use multimethod assessments in statistical analyses such as moderated mediation analysis. The objectives of the present study were to create a multimethod moderated mediation model, apply the model to an extant dataset of child developmental behaviors, and evaluate conditions under which the model performed well using a Monte Carlo simulation study. Results from the application showed that the indirect path from hyperactivity to academic impairment through oppositional defiant behavior was significant but not moderated by inattention. Results from the simulation study indicated that excluding true method effects from a moderated mediation model resulted in unacceptable parameter and standard error bias. These results point to the advantages of using the M4 model to evaluate moderated mediation in the presence of multimethod data.
4

Clearing up the He Said/She Said of Dating Aggression: A Multimethod Investigation of Externalizing Behaviors and Psychological Aggression

Klipfel, Katherine Marie 05 April 2012 (has links)
No description available.
5

The Psychometric Properties of the Inner Strength Questionnaire for Women with Chronic Health Conditions

Lewis, Kristi Leanne 01 January 2004 (has links)
The purpose of this research was to develop and test an instrument to measure or quantify the construct of inner strength. Inner strength was synthesized into a theory based on twelve years of qualitative data from direct participant quotes, defined by Roux et al. (2002) as a central human resource that promotes well-being and healing. The inner strength questionnaire (ISQ) has undergone extensive psychometric evaluation which resulted in several versions. The third version had 37-items and was believed to have four subscales that mirrored the theoretical themes that emerged through the qualitative data. The sample was composed of 281 women with a variety of chronic health conditions including breast cancer, multiple sclerosis, diabetes, and heart disease. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were employed to assess the structure of the ISQ. Internal consistency was used to assess the reliability of each hypothesized subscale and the entire ISQ. Convergent and discriminant validity, were analyzed using the multitrait-multimethod by Campbell and Fiske (1959). For convergent validity, the entire instrument and each of the subscales was correlated with similar theoretical subscales of the Mastery of Stress Instrument (Younger, 1993). For discriminant validity, the Center for Epidemiological Studies in Depression (CESD) was correlated with the entire ISQ. Both the EFA and CFA revealed a four factor model. The four factors were labeled 1) mental, 2) connectedness, 3) knowing and searching, 4) physical. The reliability for all items on the ISQ was 0.91. The reliabilities for each of the subscales were 0.85 for mental, 0.96 for connectedness, 0.85 for knowing and searching, and 0.83 for physical. The multitrait-multimethod matrix revealed correlation coefficients for the relationship between the ISQ and MSI to be 0.55 and a correlation coefficient of -0.19 between the ISQ and the CESD.A four factor model is supported by the statistical data. Through face-to-face interviewing and input from content expert reviewers, ten items were eliminated from the 37-item (version 3) instrument to form a new version of the instrument. The new instrument supports the metasynthesis generated by Roux (2002) except for the fifth theme, entitled "new normal", which was found to be a consequence of having inner strength, not a component of inner strength.
6

Recursos do país na internacionalização de PMES de países emergentes : um estudo no contexto brasileiro

Winckler, Natália Carrão January 2018 (has links)
Esta tese investiga a relação entre recursos do país e desempenho internacional de Pequenas e Médias Empresas (PMEs) brasileiras. Com a abertura dos mercados globais, PMEs de países emergentes enfrentam novos entrantes no mercado doméstico, se tornam multinacionais com expansão internacional tardia e características distintivas, e passam a lidar com recursos que devem ser adequados para estratégias voltadas ao mercado interno e externo, sendo a exportação o nível menos complexo e mais adotado de internacionalização dessas empresas. Compreender a internacionalização a partir das características da firma e da localização em um país de origem emergente mostra-se um desafio gerencial e teórico. A Visão Baseada em Recursos (VBR) é apropriada para esse tópico de pesquisa, pois permite abordar os recursos da firma e do país na geração de vantagem competitiva sob a lógica da internacionalização. Recursos do país são externos à firma e disponíveis a qualquer empresa localizada em um país (FAHY, 2002) e ainda não foram investigados quanto ao seu uso e relação com o desempenho na internacionalização de PMEs de países emergentes. Para suprir esta lacuna teórica, esta pesquisa se dividiu em duas fases: a etapa qualitativa e exploratória identificou recursos para internacionalização de PMEs de países emergentes. Adotaram-se técnicas de revisão sistemática de literatura, seguida de entrevistas com especialistas, instituições e PMEs no contexto brasileiro. Identificaram-se 11 recursos do país por meio de análise de conteúdo com apoio do software Nvivo. O grau de utilização e a relação dos recursos do país com o desempenho internacional das empresas foram verificados empiricamente na etapa quantitativa e descritiva da pesquisa, em uma Survey com 222 PMEs brasileiras. O desempenho internacional foi medido de modo subjetivo, por um construto de satisfação com atividades internacionais nos últimos três anos, e de modo objetivo, baseado na intensidade exportadora da empresa. A análise dos dados foi feita com técnicas estatísticas paramétricas e apoio do software SPSS. Os principais resultados apontam que os recursos do país mais utilizados são os de acesso à informação, infraestrutura logística e cadeias produtivas bem desenvolvidas, os quais explicam 9,4% do desempenho internacional subjetivo das PMEs brasileiras. Por outro lado, não há relação entre recursos do país e intensidade exportadora das empresas. Houve diferenças no uso de recursos do país quanto às características da empresa exportadora, como idade, escopo geográfico, intensidade tecnológica e tipo de gestão, o que não ocorreu quanto à experiência internacional. Embora os recursos do país sejam utilizados pelas PMEs brasileiras, destaca-se que não são determinantes para sua vantagem competitiva no mercado externo. As PMEs brasileiras estão otimistas em relação ao crescimento nas exportações. Os recursos do país associados à satisfação com atividades internacionais devem embasar políticas e projetos setoriais para internacionalização dessas empresas. Os resultados desta pesquisa cobriram lacunas teóricas sobre o tema de internacionalização de PMEs de países emergentes sob a Visão Baseada em Recursos e abriram novos caminhos de investigação. Pesquisas futuras podem comparar estes resultados com o contexto de empresas de diferentes portes e países emergentes. Possivelmente, os recursos do país menos estratégicos para PMEs brasileiras sejam estratégicos em outros contextos, o que deve ser verificado empiricamente. Por fim, sugere-se verificar quais recursos da firma estão associados ao uso de recursos do país e demais fatores determinantes no desempenho internacional de PMEs de países emergentes. / This thesis investigates the relationship between country resources and the international performance of Brazilian Small and Medium Enterprises (SMEs). With the opening of global markets, emerging market SMEs face new entrants in the domestic market, become multinationals with late international expansion and distinctive characteristics, and begin to deal with resources that should be adequate for strategies aimed at the domestic and foreign market. Export is the less complex and more used mode of entry of SMEs in foreign markets. Understanding the internationalization through the characteristics of the firm and its location in an emerging country of origin is a managerial and theoretical challenge. The Resource Based View (VBR) is appropriate for this research topic because it allows an approach to the country and the firm resources to create competitive advantage in internationalization. Country resources are external to the firm and available to any company located in a country (FAHY, 2002). There are no researches about the use and relation of country resources to internationalization performance of SMEs in emerging countries. To fill this theoretical gap, this research was divided into two phases: the qualitative and exploratory stage identified resources for internationalization of SMEs from emerging countries. Techniques of systematic literature review were adopted, followed by interviews with specialists, institutions and SMEs in the Brazilian context. Eleven country resources were identified through content analysis supported by Nvivo software. The use and the relation of country resources to the international performance of the SMEs were verified empirically in the quantitative and descriptive stage of the research, in a Survey with 222 Brazilian SMEs International performance was measured subjectively by a construct of satisfaction with international activities in the last three years, and in an objective way, based on the export intensity of the company. Data analysis was performed using parametric statistical techniques with SPSS software support. The main results indicate that the most used country resources are information access, logistics infrastructure and well-developed production chains, which are responsible for 9.4% of the subjective international performance of Brazilian SMEs. On the other hand, there is no relation between resources of the country and export intensity SMEs. There were differences in the use of country resources regarding the characteristics of the exporting SMEs, such as age, geographic scope, technological intensity and type of management. There were no differences regarding international experience of firms. Although country resources are used by Brazilian SMEs, it is highlighted that they do not generate competitive advantage in the foreign market. Brazilian SMEs are optimistic about the growth in exports. Country resources associated to the satisfaction with international activities should support policies and sectoral projects for the internationalization of these firms. The results of this research covered theoretical gaps on the theme of internationalization of SMEs from emerging countries under the Resource Based View and opened new avenues of research. Future research can compare these results with other firms with different sizes and from other emerging countries. Possibly, the less strategic country resources for Brazilian SMEs are strategic in other contexts, which should be verified empirically. Finally, it is suggested to verify which firm resources are associated to the use of country resources, as well as other determining factors to the international performance of SMEs in emerging countries.
7

Biggs's 3P Model of Learning: The Role of Personal Characteristics and Environmental Influences on Approaches to Learning

Jones, Catherine Toni, n/a January 2003 (has links)
The aim of this research programme was to examine the 3P model of learning (Biggs, 1987a, 1999). The first stage necessarily involved an examination of the Study Process Questionnaire (SPQ) (Biggs, 1987a), an instrument developed to measure the process component of the model. The structure of the SPQ was examined utilising exploratory and confirmatory factor analysis of undergraduate responses (n= 260). The results indicated the higher-order factor structure of deep-achieving and surface-achieving-motive provided the most reliability and a better model fit than either the subscales or scales of the SPQ. The construct validity of the two constructs deep and surface was assessed next using a multitrait-multimethod matrix (MTMM) constructed from the three measures of the self-report questionnaire, interview ratings and written assessments from first-year students (n = 50). The results indicated good convergent validity between the deep scale of the SPQ and the interview ratings on the deep scale, between the deep scale on the SPQ and the written assessment ratings, and between the interview ratings and written assessment ratings. The results indicated good convergent validity between the surface scale on the SPQ and the interview ratings on the surface scale, but not between the surface scale on the SPQ and the written assessment ratings, and between the interview ratings and written assessment ratings. The discriminant validity between deep and surface was good for the SPQ, but not for either the interview or the written assessment. The findings indicate the deep and surface scales of the SPQ adequately measure the underlying deep and surface constructs. The retest reliability of the SPQ was then examined utilising Spearman’s Rho to assess the rank-order correlations with a sample of third-year students (n=87). Over a period of three months there were significant correlations for the surface motive, surface strategy, deep strategy, achieving motive and achieving strategy subscales of the SPQ, suggesting good reliability for these subscales. The results at the scale level of the SPQ result in similar conclusions. There was a moderate significant correlation for the surface, deep and achieving scales of the SPQ, suggesting the scales have good reliability over a period of three months. There was also a moderate significant correlation for the surface-achieving-motive and deep-achieving scales over a period of three months. The stability of SPQ scores was also assessed utilising a series of one-way repeated measures MANOVA’s with a sample of third-year undergraduates (n = 64). The results suggest some change occurs in self-reported use of approaches to learning between the first and third-years of an undergraduate degree programme. The role of the teaching-learning environment was next examined. Utilising a within-subjects design, undergraduate students (n=48) concurrently enrolled in traditional (viz. lecture and tutorial) and non-traditional (viz. workshops and group projects) subjects completed the SPQ to describe their approaches to learning in each subject. A series of 2x2 repeated measures MANOVA’s were undertaken. The results indicated students were likely to change their approach to learning based on their perceptions of the learning environment (traditional or non-traditional subject). However, those students identified as predominantly surface learners significantly increased their deep scale scores in the non-traditional subject when compared to deep learners. The next study examined a range of personality (locus of control, sensing function, thinking function, intelligence) and demographic variables (age, gender, year of study) to assess which were good predictors of deep and surface approaches to learning. A series of regression analyses identified age, sensing function and locus of control as significant predictors of the surface, surface-achieving-motive, and deep approaches to learning. Locus of control was found to be a significant predictor of the deep-achieving approach to learning. The final study examined the 3P model of learning. Based on the results of earlier studies in the research programme the situational component of the presage factors was not included. The model was examined using structural equation modelling (n= 394). Two initial models were tested using both the three (deep, surface, achieving) and two (surface-achieving-motive and deep-achieving) process factor models. The three process factor model provided the better model fit. The results suggest deep and surface approaches to learning do not mediate between personal characteristics and learning outcomes (i.e. GPA). The results of this series of studies suggest the need for further research into the SPQ and the 3P model of learning. The implications of the research programme are also discussed.
8

The development of the Positive Self Change framework of crime desistance

Parhar, Karen 18 January 2011
The utility of crime desistance research for community management and rehabilitation of offenders is evident; however this field of research is relatively recent. Theoretical research on crime desistance has varied over the years, although generally the field has been divided between perspectives focusing on either social or psychological causes. In addition, much of the research is plagued with methodological problems, such as an abundance of retrospective studies and unrepresentative offender samples. The present study proposes a framework of crime desistance that integrates the social and psychological perspectives and is compatible with current views on offender rehabilitation. This framework entitled, the Positive Self Change (PSC) framework, generally states that crime occurs and is maintained when basic psychological needs are not being satisfied. When deprived needs causing crime are satisfied in an optimal manner, autonomous motivation to desist and reductions in crime-related factors will follow, resulting in crime desistance. The goal of the study is to develop and provide some support for this framework of crime desistance and compare it to the currently dominating theory of crime desistance, the revised age-graded informal social control (AGISC) theory. Two studies were conducted utilizing a multimethod approach. The first quantitative study prospectively tested whether aspects of the PSC framework are supported by determining whether the framework can predict crime desistance in 60 released offenders after a 7-year follow-up and compare it to the currently dominating explanation of crime desistance. The second study is a prospective case study of 3 federal offenders during their first few months of release from federal incarceration. Results provide support for the development of the PSC framework. Protective strategies, motivation and criminogenic risk factors significantly predicted crime desistance after 7 years. In addition, the PSC framework significantly added to the prediction of the AGISC theory for 2 of the 4 crime desistance outcome measures. Study 2 also provided some support and explanation to the findings of study 1. The final section presents a discussion of the overall conclusions, implications of the results, limitations and future directions.
9

Public Support for Military Interventions across Levels of Political Information and Phases of Intervention

Sirin Villalobos, Cigdem 2009 May 1900 (has links)
Scholars widely acknowledge that democratic political leaders seek public support for their policy endeavors, particularly when conducting costly policies as in the case of military interventions. A deeper understanding of the factors that affect public support for military interventions is crucial to explaining more definitively the determinants of foreign policy decisions regarding military interventions. However, most studies in this area of research examine the public as an undifferentiated mass that reacts uniformly to changes in the course of an intervention. In addition, scholars often overlook the varying dynamics of public support across different phases of a military intervention. Given these shortcomings in the literature, the objective of this dissertation is to examine the formation of public support as a function of political information levels and intervention stages. This dissertation is important in both methodological and theoretical terms. Methodologically, the major contribution of my dissertation is the adoption of a multimethod approach that is almost non-existent in this line of research. By bringing together a formal framework, experimentation, and statistical analyses of public opinion survey data, I develop a more refined theory and attain more robust empirical results. Theoretically, the study challenges the dominant mode of research on military interventions in which public opinion is treated as a homogenous mass. Specifically, I explore how major factors related to public support for military interventions (such as casualty rates) play different roles and weigh differently in their impact on the opinions of politically informed versus less informed individuals across stages of an intervention. The results of the experiments and survey data analyses demonstrate that politically informed individuals express less support for a military intervention at the starting (rally) phase of that intervention compared to the less informed. That said, as the intervention proceeds and casualties are incurred, support of politically uninformed individuals decreases at higher rates than does support of politically informed ones. In other words, politically informed individuals demonstrate more stable levels of support across intervention stages. In addition, both experimental and survey data analyses show that policy-specific information is generally a more influential factor on public support for military interventions compared to general political information.
10

CONSTRUCT VALIDITY OF A LABORATORY AGGRESSION PARADIGM: A MULTITRAIT-MULTIMETHOD APPROACH

Phillips, Joshua Parker 01 January 2011 (has links)
There continues to be doubt regarding the validity of laboratory aggression paradigms. This paper provides an investigation of the construct validity of one prominent aggression task, the Taylor Aggression Paradigm (TAP), within a Multitrait Multimethod Matrix (MTMM) methodology. Participants consisted of 151 male undergraduate psychology students with a median age of 19 years old (M=19.45, SD = 2.03). Participants completed self-report and behavioral measures of aggression, impulsivity, and pro-social behavior which were analyzed using a Correlated Trait – Correlated Method Confirmatory Factor Analysis model. Results supported the construct validity of the MTMM model and the TAP. This study provides one of the only a priori tests of construct validity for the TAP and provides a basis for additional validation studies using this methodology.

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