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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

Explicating Presence and Immediacy: An Examination of Two Overlapping Constructs

Easley, Nicole G. 09 July 2014 (has links)
No description available.
72

Self-Perceived Spiritual Competence of Mental Health Professionals

Butler, Jamiylah Yasmine 29 October 2010 (has links)
No description available.
73

A Factor Analytic Evaluation of the Private Club Members' Benefits Scale

Njeri, Millicent 07 1900 (has links)
This study's first goal is to investigate whether a 23-item multidimensional scale is a valid and reliable measure of benefits private club members perceive to be important. Seven theoretically plausible model structures are empirically tested: a unidimensional model, a two oblique first-order factors model, a four oblique first-order factors model, a two oblique second-order factors model, a bifactor model with two domain-specific factors, a bifactor model with four domain-specific factors, and two oblique bifactor models. The second goal is to examine the benefits members receive most often from their membership clubs. The multidimensional scale is based on four dimensions: member-to-employee relationship, member-to-member relationship, confidence, and reduced anxiety. Member-to-employee relationship and member-to-member relationship subscales are aligned with social benefits while confidence and reduced anxiety subscales are aligned with psychological benefits. The study participants (N = 114) were recruited through a commercial crowdsourcing platform, Prolific. The results of a Bayesian confirmatory factor analysis (BCFA) provided support for the two oblique bifactor models. Additionally, the social benefits and psychological benefits bifactor scales displayed acceptable reliability. A comparison of the means for each type of benefit revealed that no statistically significant differences existed between the general social benefits factor and the general psychological benefits factor as well as between member-to-employee relationship and member-to-member relationship benefits. However, the mean of reduced anxiety benefits was statistically significantly higher than the mean of confidence benefits. The findings of this study contribute to the theoretical understanding and measurement of private club membership value by examining various dimensions of benefits members perceive to be important. The findings also provide private club managers with a valid and reliable scale for assessing benefits their members perceive to be important.
74

Accuracy of Global Fit Indices as Indictors of Multidimensionality in Multidimensional Rasch Analysis

Harrell, Leigh Michelle 10 December 2009 (has links)
Most research on confirmatory factor analysis using global fit indices (AIC, BIC, AICc, and CAIC) has been in the structural equation modeling framework. Little research has been done concerning application of these indices to item response models, especially within the framework of multidimensional Rasch analysis. The results of two simulations studies that investigated how sample size, between-dimension correlation, and test length affect the accuracy of these indices in model recovery using a multidimensional Rasch analysis are described in this dissertation. The first study analyzed dichotomous data, with model-to-data misfit as an additional independent variable. The second study analyzed polytomous data, with rating scale structure as an additional independent variable. The interaction effect between global fit index and between-dimension correlation had very large effect sizes in both studies. At higher values of between-dimension correlation, AIC indicated the correct two-dimension generating structure slightly more often than does the BIC or CAIC. The correlation by test length interaction had an odds ratio indicating practical importance in the polytomous study but not the dichotomous study. The combination of shorter tests and higher correlations resulted in a difficult-to-detect distinction being modeled with less statistical information. The correlation by index interaction in the dichotomous study had an odds ratio indicating practical importance. As expected, the results demonstrated that violations of the Rasch model assumptions are magnified at higher between-dimension correlations. Recommendations for practitioners working with highly correlated multidimensional data include creating moderate length (roughly 40 items) instruments, minimizing data-to-model misfit in the choice of model used for confirmatory factor analysis (MRCMLM or other MIRT models), and making decisions based on multiple global indices instead of depending on one index in particular. / Ph. D.
75

The relationship between organisational climate and employee satisfaction in a South African Information and Technology organisation

Castro, Monia Lola 11 1900 (has links)
This research explores the relationship between organisational climate and job satisfaction in an Information and Communication Technology (ICT) organisation within South Africa by means of quantitative research. An organisational climate questionnaire was developed to measure the organisational climate and job satisfaction of the organisation and was administered to a sample of 696 employees across three regions. The results indicate that there was a strong positive correlation (0.813 at the 0.01 level) between organisational climate and job satisfaction, therefore supporting the research hypothesis. A stepwise regression was conducted and nine dimensions of organisational climate were found to predict 71% variance in job satisfaction. The interaction of biographical and organisational variables on organisational climate and job satisfaction was studied by means of t-tests and ANOVA. Although statistical significant differences were found, in terms of practical significance, the effect sizes were generally found to be small. / Industrial and Organisational Psychology / M.A. (Industrial and Organisational Psychology)
76

The relationship between organisational climate and employee satisfaction in a South African Information and Technology organisation

Castro, Monia Lola 11 1900 (has links)
This research explores the relationship between organisational climate and job satisfaction in an Information and Communication Technology (ICT) organisation within South Africa by means of quantitative research. An organisational climate questionnaire was developed to measure the organisational climate and job satisfaction of the organisation and was administered to a sample of 696 employees across three regions. The results indicate that there was a strong positive correlation (0.813 at the 0.01 level) between organisational climate and job satisfaction, therefore supporting the research hypothesis. A stepwise regression was conducted and nine dimensions of organisational climate were found to predict 71% variance in job satisfaction. The interaction of biographical and organisational variables on organisational climate and job satisfaction was studied by means of t-tests and ANOVA. Although statistical significant differences were found, in terms of practical significance, the effect sizes were generally found to be small. / Industrial and Organisational Psychology / M.A. (Industrial and Organisational Psychology)
77

Impact of organization culture on TQM implementation barriers

Al-Jalahma, Rashed January 2012 (has links)
This study examines the relationship between organisational culture and TQM implementation barriers to gain a more comprehensive understanding of the factors affecting TQM implementation. For TQM implementation to take root effectively, the critical role of organisational culture is widely recognised. The existence of pitfalls and obstacles (barriers) to implementing TQM is also widely recognized, as is the importance of understanding these TQM implementation barriers. Nevertheless, whilst many TQM implementation models and frameworks have been designed and proposed, no study has been located in the literature that has systematically examined the relationship between organisational culture and TQM implementation barriers. This theoretical lapse in the TQM literature necessitates an investigation of the direction and significance of the relationship which can help in devising more informed TQM implementation models. In this context, a quantitative research methodology was adopted to examine the profiles of organisational culture and of TQM implementation barriers in organisations in Bahrain and to examine the relationship between these variables. Bahrain is presently going through a rapid expansion in quality management system adoption. Accordingly, the research uses four constructs of organisational culture as independent variables and six constructs of TQM implementation barriers identified through the literature as dependent variables. A set of hypotheses was developed describing the expected relationships between these two sets of variables. The study adopted a positivist, deductive approach using an online survey questionnaire to obtain quantitative data for hypothesis testing. The research instrument was assessed for validity and reliability through structured interviews. Responses to the survey were obtained from 325 organisations located in Bahrain. Analysis of Moment Structure (AMOS) version 16.0 was used to test the measurement model using Confirmatory Factor Analysis (CFA), and to test the structural model using Structural Equation Modelling (SEM). Both models showed a very good fit to the data, with good construct validity and reliability. The findings of the study showed that group culture, which is believed to be an ‘ideal’ culture for TQM implementation helps decrease employee barriers, information barriers and customer related barriers as predicted. However group culture wasn’t found to help decrease top management barriers. Rational culture was found to decrease top management barriers as predicted but it wasn’t found to help decrease employee and customer barriers. The findings confirm the significant impact of hierarchical culture in the Bahrain context in decreasing planning and process management barriers. Developmental culture’s potential to lower employee and customer barriers was observed but was not found to be statistically significant. This research makes several contributions in both academic and practical terms. Theoretically, positioning organisational culture as an antecedent of TQM implementation barriers, this study is the first holistic approach that attempts to empirically investigate which type of organisational culture is related to which TQM implementation barriers. Understanding the nature, strength and direction of these relationships can help to inform and support future TQM implementation attempts. Practically, this research will benefit organisations who have not been able to fully realise TQM, or who are in the process of planning the introduction of TQM. The findings of the study can help Bahraini organisations to realise the long term quality objectives of the Bahrain Centre of Excellence’s Vision 2030 programme. Furthermore, the study has contributed a new empirically tested scale for measuring TQM implementation barriers - a valuable tool on its own, or in conjunction with the organisational culture profile assessment tool - for both practitioners wishing to examine their readiness for TQM or progress in creating a TQM ethos, and for future researchers wishing to extend our understanding of the influence of TQM barriers and/or culture on major organisational improvement interventions. It is expected that replication of this study in other countries and regions with different culture and context may help in developing an improved model of TQM implementation. Implications for managers and future research are advanced.
78

Confirmatory factor analysis with ordinal data : effects of model misspecification and indicator nonnormality on two weighted least squares estimators

Vaughan, Phillip Wingate 22 October 2009 (has links)
Full weighted least squares (full WLS) and robust weighted least squares (robust WLS) are currently the two primary estimation methods designed for structural equation modeling with ordinal observed variables. These methods assume that continuous latent variables were coarsely categorized by the measurement process to yield the observed ordinal variables, and that the model proposed by the researcher pertains to these latent variables rather than to their ordinal manifestations. Previous research has strongly suggested that robust WLS is superior to full WLS when models are correctly specified. Given the realities of applied research, it was critical to examine these methods with misspecified models. This Monte Carlo simulation study examined the performance of full and robust WLS for two-factor, eight-indicator confirmatory factor analytic models that were either correctly specified, overspecified, or misspecified in one of two ways. Seven conditions of five-category indicator distribution shape at four sample sizes were simulated. These design factors were completely crossed for a total of 224 cells. Previously findings of the relative superiority of robust WLS with correctly specified models were replicated, and robust WLS was also found to perform better than full WLS given overspecification or misspecification. Robust WLS parameter estimates were usually more accurate for correct and overspecified models, especially at the smaller sample sizes. In the face of misspecification, full WLS better approximated the correct loading values whereas robust estimates better approximated the correct factor correlation. Robust WLS chi-square values discriminated between correct and misspecified models much better than full WLS values at the two smaller sample sizes. For all four model specifications, robust parameter estimates usually showed lower variability and robust standard errors usually showed lower bias. These findings suggest that robust WLS should likely remain the estimator of choice for applied researchers. Additionally, highly leptokurtic distributions should be avoided when possible. It should also be noted that robust WLS performance was arguably adequate at the sample size of 100 when the indicators were not highly leptokurtic. / text
79

Investigating factor structure of scores on the outcome questionnaire using factor mixture modeling

Kim, Seong-Hyeon 05 November 2009 (has links)
The Outcome Questionnaire (OQ-45; Lambert et al., 1996) has been widely employed as a psychotherapy outcome monitoring measure following research findings that support various aspects of its validity and sensitivity to change. Despite its broad usage in both clinical and research settings, some of its psychometric properties are not definite. The three subscales of the OQ-45 are designed to measure three distinct, but related, aspects of psychological functioning. However, neither the one- nor three-factor models have been supported by previous research. Likewise, the results of the current study supported neither of those factor structures. It was suspected that heterogeneity in data might have led to the lack of the confirmatory factor analysis model fit. Therefore, factor mixture modeling (FMM), a combination of confirmatory factor analysis and latent class analysis, was employed to investigate potential heterogeneity of the data. Among the series of factor mixture models with varying numbers of classes that were fitted, the two-class, unconditional FMM based on the revised three-factor solution was decided to best describe the data under analysis. Although three covariates of clinical status, sex, and race were selected as known sources of heterogeneity and incorporated into the FMMs (i.e., conditional model), the findings were contradictory to expectations. The implications of these findings in counseling were discussed in terms of aggregating OQ-45 scores and its score interpretation. Furthermore, this study demonstrates the process involved and dilemmas encountered in choosing the best fitting FMM. There is currently no criterion for assessing individual model fit. Instead, models’ fit are compared using various information criteria (IC). And, as was found in the current study, these ICs are frequently contradictory. Thus, the process of identifying the best fitting model cannot rest solely on fit indices but must also depend on interpretation of models and consideration of the ultimate use of the results. In the current study, consideration of transition matrices and the pattern of latent means across classes contributed as much to model selection as fit index interpretation. / text
80

An Approach to Effectively Identify Insider Attacks within an Organization

Doss, Gary 01 January 2012 (has links)
The purpose of this research is to identify the factors that influence organizational insiders to violate information security policies. There are numerous accounts of successful malicious activities conducted by employees and internal users of organizations. Researchers and organizations have begun looking at methods to reduce or mitigate the insider threat problem. Few proposed methods and models to identify, deter, and prevent the insider threat are based on empirical data. Additionally, few studies have focused on the targets or goals of the insider with organizational control as a foundation. From a target perspective, an organization might be able to control the outcome of a malicious insider threat attack. This research applied a criminology lens as an organization policy violation is, or resembles, a criminal activity. This research uses the Routine Activities Theory (RAT) as a guide to develop a theoretical model. The adoption of RAT was for its focus on the target and the protective controls, while still taking into account the motivated offender. The study identified the components of the model concerning insider threats, espionage, and illicit behavior related to information systems through literature. This led to the development of 10 hypotheses regarding the relationships of key factors that influence malicious insider activity. Data was collected using a scenario-based survey, which allowed for impartial responses from a third-person perspective. This technique has become popular in the field of criminology, as the effects of social desirability, acceptance, or repudiation will not be a concern. A pilot test verified the survey's ability to collect the appropriate data. The research employed Structural Equation Modeling (SEM) and Confirmatory Factor Analysis (CFA) techniques to analyze and evaluate the data. SEM and CFA techniques identified the fit of the model and the factors that influence information security policy violations. The result of the analysis provided criteria to accept the hypotheses and to identify key factors that influence insider Information System policy violations. This research identified the relationships and the level of influence between each factor.

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