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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

Culturally Relevant Distress Measurement: Latent Structure and Differences Among Language Variations of the Tension Scale for Bangladeshi Women

Shabeba Islam (19201117) 24 July 2024 (has links)
<p dir="ltr">Psychological assessment contributes important information that strengthens the understanding of individual characteristics and capabilities, and often is intended to screen for mental disorder. However, assessment measures reflect the cultures in which they originate. As such, it is worth investigating whether these measures can aptly assess the experiences of those who come from outside of the dominant culture and/or those who may be in intercultural transition, for whom expressions of distress may reflect distinct cultural norms. One culturally relevant measurement of distress for South Asian women is the Tension Scale. Given the novelty of this scale and its limited use and testing in representative populations, the current study examines the underlying factor structure of the Tension Scale and the impact of language of administration on symptom reporting on various psychological scales in English and in Bangla. Using a community sample of South Asian immigrant women (<i>N =</i> 247), we found that a three factor model best fits the Tension Scale in both English and Bangla. Furthermore, we found that language of administration had a modest impact on symptom reporting. The results of this study suggest that some aspects of the psychological constructs of interest are universally experienced, while their manifestation and reporting are subtly influenced by cultural and linguistic factors. Overall, this research builds on the preliminary literature surrounding the Tension Scale to examine its latent structure and the impact of language of administration on responding patterns. Implications for psychological assessment within this community are discussed.</p>
72

Frequency-of-seeing curves (psychometric functions) for perimetric stimuli in age-related macular degeneration

Denniss, Jonathan, Baggaley, H.C., Astle, A.T. 27 September 2024 (has links)
Yes / Purpose: Frequency-of-seeing (FoS) curves (psychometric functions) for perimetric stimuli have been widely used in computer simulations of new visual field test procedures. FoS curves for age-related macular degeneration (AMD) are not available in the literature and are needed for the development of improved microperimetry test procedures, which are of particular interest for use as clinical trial endpoints. Methods: Data were refitted from a previous study to generate FoS curves for 20 participants with AMD, each tested at nine locations within the central 10°. Stimulus parameters, background luminance and dB scale were matched to the MAIA-2 microperimeter, and stimuli were presented in a method of constant stimuli to build up FoS curves over multiple runs. FoS curves were fitted with a modified cumulative Gaussian function. The relationship between sensitivity and slope of fitted FoS curves was modelled by robust linear regression, producing models both with and without an eccentricity parameter. Results: FoS curves were satisfactorily fitted to data from 174 visual field locations in 20 participants (age 65–83 years, 11 female). Each curve was made up of a median of 243 (range 177–297) stimulus presentations over a median of 12 (range 9–32) levels. Median sensitivity was 25.5dB (range 3.8–31.4dB). The median slope (SD of fitted function) was 1.6dB (range 0.5–8.5dB). As in previous studies of other conditions, the slope of fitted FoS curves increased as sensitivity decreased (p<0.001). Conclusions: FoS are provided for participants with AMD, as well as models of the relationship between sensitivity and slope. These fitted models and data may be useful for computer simulation studies of microperimetry procedures. Full details of the fitted curves are provided as supporting information.
73

Measuring parenting practices and family functioning with brief and simple instruments: Validation of the Spanish version of the PAFAS

Mejia, A., Filus, A., Calam, R., Morawska, A., Sanders, M.R. 06 1900 (has links)
No / A set of instruments with different response formats is usually used to assess parenting practices in clinical settings and in research studies. These complex protocols can be problematic for parents with low-literacy levels. The Parenting and Family Adjustment Scales (PAFAS) is a brief, easy to read instrument that has been developed to address these concerns. The English version of this instrument suggested that it has good internal consistency (range from .70 to .96), as well as satisfactory construct and predictive validity. The aim of the present study was to explore the validity and reliability of the Spanish version of the PAFAS. A sample of 174 Spanish-speaking parents (85 % mothers; M = 37 years old; SD = 9.1) from Panama in Central America completed the instrument alongside the Parenting Scale and the Depression Anxiety Stress Scale (DASS-21). Psychometric evaluations revealed that the measure had satisfactory construct and concurrent validity as well as good internal consistency (values >.60 for all subscales) and test–retest reliability (ICC >.60 for all subscales). The PAFAS shows promise as a brief outcome measure to assess parenting practices and family functioning with Spanish-speaking parents. Potential uses of the measure and implications for further validation with diverse samples are discussed.
74

Psychometric evaluation of the Cohen-Mansfield Agitation Inventory in an acute general hospital setting

Kupeli, N., Vickerstaff, V., White, N., Lord, Kathryn, Scott, S., Jones, L., Sampson, E.L. 31 May 2017 (has links)
Yes / Objectives The Cohen-Mansfield Agitation Inventory (CMAI; (Cohen-Mansfield and Kerin, 1986)) is a well-known tool for assessing agitated behaviours in people with dementia who reside in long-term care. No studies have evaluated the psychometric qualities and factor structure of the CMAI in acute general hospitals, a setting where people with demand may become agitated. Method Longitudinal study investigating pain, agitation and behavioural problems in 230 people with dementia admitted to acute general hospitals in 2011–2012. Cohen-Mansfield Agitation Inventory was completed as part of a battery of assessments including PAINAD to measure pain. Results A nine-item two-factor model of aggressive and nonaggressive behaviours proved to be the best-fitting measurement model in this sample, (χ2 = 96.3, df = 26, p<0.001; BIC [Bayesian Information Criterion] = 4593.06, CFI [Comparative Fit Index] = 0.884, TLI [Tucker Lewis Index] = 0.839, RMSEA [Root Mean Square Error of the Approximation] = 0.108). Although similar to the original factor structure, the new model resulted in the elimination of item 13 (screaming). Validity was confirmed with the shortened CMAI showing similar associations with pain as the original version of the CMAI, in particular the link between aggressive behaviours and pain. Conclusion The factor structure of the CMAI was broadly consistent with the original solution although a large number of items were removed. Scales reflecting physical and verbal aggression were combined to form an Aggressive factor, and physical and verbal nonaggressive behaviours were combined to form the Nonaggressive factor. A shorter, more concise version of the CMAI was developed for use in acute general hospital settings. Copyright © 2017 John Wiley & Sons, Ltd. / Alzheimer's Society and the BUPA Foundation. Grant Number: 131
75

A Revised Measure of Ely's Conditions of Change: Initial Psychometric Properties of the Implementation Profile Inventory II

Dickens, Heidi Elizabeth 16 December 2016 (has links)
This study provided reliability and validity evidence to substantiate the Implementation Profile Inventory II's (IPI-II) use as a measure of a user's perceptions of Ely's (1990a) eight conditions of change. To establish the psychometric properties of the IPI-II, three alternative factor structure models for Ely's conditions were compared. A confirmatory approach was used for the analysis of the evidence. A four-factor structure hypothesized by Ensminger et al (2004) appears to fit reasonably well; however, this study provided stronger evidence for a fifth underlying construct as a better model for the IPI-II's structure in a sample of 252 university faculty and staff. Perceptions of conditions that influence implementation of innovations are important measures of success and can serve as a planning guide for the instructional designer (Ely, 1990a, 1990b, 1999a, 1999b; Ensminger and Surry, 2002; Ensminger, 2005). The IPI-II is a revised scale (Ensminger and Surry, n.d.) designed to measure a user's perceptions of the importance of Ely's eight conditions of change. Psychometric information was obtained and reported on the measure's dimensionality, reliability, and validity. Recommendations are offered to facilitate the revision of questionnaire items to achieve a stable, well-defined solution for the factor structure (dimensionality) of the IPI-II. This study represented the first psychometric evaluation of the IPI-II and the first confirmatory study in the development cycle of the Implementation Profile Inventory. / Ph. D. / This study provided reliability and validity evidence to substantiate the Implementation Profile Inventory II’s (IPI-II) use as a measure of perceptions of Ely’s (1990a) eight conditions of change. Perceptions of conditions that influence the decision to use a new technology are important measures of success and can serve as a planning guide for the instructional designer (Ely, 1990a, 1990b, 1999a, 1999b; Ensminger & Surry, 2002; Ensminger, 2005). The IPI-II is a revised instrument (Ensminger & Surry, n.d.) designed to measure a user’s perceptions of the importance of Ely’s (1990a) eight conditions of change to their decision to use a new technology. These eight conditions are Dissatisfaction with Status Quo, Knowledge and Skills, availability of resources, availability of time, a rewards or incentives program, participation in the form of shared decision making and communication, visible and vocal commitment by key players and stakeholders, and leadership that provides encouragement and support for the new technology. Confirmatory Factor Analysis (CFA) was the primary statistical procedure used to determine the ability of the IPI-II to accurately measure perceptions in a sample of 252 university faculty and staff. Recommendations are offered to facilitate the process of revising the IPI-II to increase the reliability of the results yielded by the instrument. This study represents the first psychometric evaluation of the IPI-II and the first confirmatory study in the development cycle of the Implementation Profile Inventory.
76

Standardisation of the seven graphology factors scale for application in industry

Elliott, Charmaine Adelina Eliot 06 1900 (has links)
The 7 Graphology Factors Scale is standardised for application in industry. A literature study based on the personality theories of Freud, Jung, Murray and Cattell precedes the empirical research. Graphology is conceptualised, relevant existing graphology models are explored and a graphology theory and method for use in industry proposes that graphology should be regulated and applications classified on the same basis as psychometric tests. The empirical research is based on a sample comprising 360 subjects, stratified according to gender, position and language. The written protocol is subject to analysis of 59 characteristics on the basis of the configuration of the writing. language is irrelevant and the presentation of an intervening stimulus is avoided. Factor analysis results in eight secondary factors. These are I Task Orientation - Directive, II Task Orientation- Conscientious, Ill Emotional Stability, IV Extroversion, V Independence, VI Conceptualisation, VII Openness to Experience and VIII Need for Power. Cronbach's alpha coefficient achieves 0, 61 for Factor I. Stepwise regression analysis provides correlations between factors of the Thematic Apperception, Structured Objective Rorschach and 16 Personality Factor tests with all but Factor Ill, which is hypothesised to be a new construct. Five of the factors are hypothesised to align with the Big Five Personality Model. Thr9e-way analysis of variance, t-tests and the Mantei-Haenszel tests are applied to establish differentiation based on the stratification criteria. Norm tables based on Indigenous, English and Afrikaans first language groups are provided in stens and bands. Conclusions are that graphology has a worthy theoretical heritage and offers benefits to the psychological profession and specifically industry, as part of an assessment strategy. limitations are outlined and recommendations are made for further research. / Industrial and Organisational Psychology / D.Litt. et Phil. (Industrial Psychology)
77

Adaptation of the Kessler Psychological Distress Scale (K10) for Argentinean population / Adaptación argentina de la Escala de Malestar Psicológico de Kessler (K10)

Aranguren, María 25 September 2017 (has links)
The aim of this study was to adapt the Kessler Psychological Distress Scale (K10) for Argentinean population. We conducted a linguistic adaptation of the instrument and an analysis of its psychometric properties. To assess the reliability of the scale, analysis of internal consis- tency was made through Cronbach’s alpha and temporal stability of the items was examined in two different subsamples. In addition, the scale’s validity was assessed, taking into account convergent validity, criterion validity by contrasting groups and factorial composition of the K10. Receiver Operating Characteristic (ROC) analysis was carried out to assess sensitivity, specificity and the area under the curve (AUC). The results of the present study indicate that the K10 is an adequate instrument presenting strong psychometric properties for screeningpsychological distress in our environment. / El objetivo del presente trabajo fue realizar la adaptación argentina de la Escala de Malestar Psicológico de Kessler (Kessler Psychological Distress Scale-K10). Para esto, se llevó a cabo una adaptación lingüística del instrumento y un análisis de sus propiedades psicométricas. Para evaluar la confiabilidad de la escala, se efectuó un análisis de la consistencia interna y se examinó la estabilidad temporal de los ítems. La validez del instrumento fue evaluada teniendoen consideración diferentes indicadores de la misma. Se calcularon, a través de las curvas ROC, los niveles de sensibilidad, especificidad y el área bajo la curva (ABC) de la prueba. Los resultados indican que se puede contar con la K10 como un instrumento de despistaje de malestar psicológico que reúne los requisitos psicométricos necesarios para ser utilizado en población argentina.
78

Standardisation of the seven graphology factors scale for application in industry

Elliott, Charmaine Adelina Eliot 06 1900 (has links)
The 7 Graphology Factors Scale is standardised for application in industry. A literature study based on the personality theories of Freud, Jung, Murray and Cattell precedes the empirical research. Graphology is conceptualised, relevant existing graphology models are explored and a graphology theory and method for use in industry proposes that graphology should be regulated and applications classified on the same basis as psychometric tests. The empirical research is based on a sample comprising 360 subjects, stratified according to gender, position and language. The written protocol is subject to analysis of 59 characteristics on the basis of the configuration of the writing. language is irrelevant and the presentation of an intervening stimulus is avoided. Factor analysis results in eight secondary factors. These are I Task Orientation - Directive, II Task Orientation- Conscientious, Ill Emotional Stability, IV Extroversion, V Independence, VI Conceptualisation, VII Openness to Experience and VIII Need for Power. Cronbach's alpha coefficient achieves 0, 61 for Factor I. Stepwise regression analysis provides correlations between factors of the Thematic Apperception, Structured Objective Rorschach and 16 Personality Factor tests with all but Factor Ill, which is hypothesised to be a new construct. Five of the factors are hypothesised to align with the Big Five Personality Model. Thr9e-way analysis of variance, t-tests and the Mantei-Haenszel tests are applied to establish differentiation based on the stratification criteria. Norm tables based on Indigenous, English and Afrikaans first language groups are provided in stens and bands. Conclusions are that graphology has a worthy theoretical heritage and offers benefits to the psychological profession and specifically industry, as part of an assessment strategy. limitations are outlined and recommendations are made for further research. / Industrial and Organisational Psychology / D.Litt. et Phil. (Industrial Psychology)
79

A partial validation of the WHOQOL-OLD in a sample of older people in South Africa / Lizanle van Biljon

Van Biljon, Lizanle January 2014 (has links)
This article describes the psychometric properties of the WHOQOL-OLD (an add-on module to the World Health Organization's Quality of Life measure for older people) in a South African sample. International literature cites three short versions of the WHOQOL-OLD instrument. The psychometric properties associated with these three short versions of the WHOQOL-OLD are also described. The unique challenges posed by ageing populations are evident in both developed and developing countries. In South Africa the elderly population is also increasing dramatically. There is a disproportionate distribution of older persons per ethnic group, with white older people representing the largest group of older South Africans (21%, proportional to ethnic group). Regardless of integration policies in post-apartheid South Africa, especially in terms of housing arrangements, the majority of long-term care facilities in South Africa remain to be occupied predominantly by white older people. For this reason the participants of this study were mostly older white South Africans. It is, however, projected that this picture will change in future times due to more aggressive transformation-driven policies. A national audit of residential care facilities by the Department of Social Development in 2010 indicated a need for psychosocial interventions since the QoL of residents was found to be undetermined. QoL research in South Africa has largely been conducted from socio-economic and health-care perspectives and has tended to focus on specific societies in which older people are usually not explicitly included. Evidence exists of various qualitative studies among older people living in long-term care facilities, from a psychological perspective. However, the short supply of quantitative studies in this setting is significant. The lack of measurements developed for an older population also resulted in an increasing need for the development of gerontological QoL measurements with sound psychometric properties. Internationally, various measures of QoL utilised in older age groups have become increasingly popular. This study took particular interest in the WHOQOL-OLD instrument. Under the auspices of the World Health Organization Quality of Life group, a collaborative effort among numerous researchers from various countries has led to the development of a measure focussing on the QoL in older population cohorts. The initial development of the generic WHOQOL measures of quality of life occurred in 15 different centres worldwide, excluding South Africa. In the development of an add-on module, 22 centres around the world were involved (again excluding South Africa). It cannot be assumed that measuring instruments developed in a Western context are applicable in an African context. South Africa is a very diverse nation - the majority of ethnic groups lead a collectivistic existence. As a result the determination of the psychometric properties of such instruments, for use within South Africa, was needed. It is of importance to note that the participants of this study were more individualistically inclined, which is comparable to Western societies. This study was the first step in exploring the instrument’s reliable use within South Africa. Surveys were completed by 176 older people who were fluent in both Afrikaans and English. Participants of the study resided in long-term care facilities in Potchefstroom in the North-West province of South Africa. Their ages varied between 61 and 95 and the mean age of participants was 77 years. Of the respondents, 50 were male and 126 were female. All reported average to good health and cognitive ability. The current study found encouraging results related to the original factor structure of the WHOQOL-OLD as well as the three shorter versions of this instrument. Results from the data of the current sample seem to fit the original structure model well. The reliabilities associated with the various sub-dimensions point to a reliable instrument. The original WHOQOL-OLD questionnaire with its 24 items or any of the three short versions of this instrument can therefore be utilised in a South African context. / MA (Clinical Psychology), North-West University, Potchefstroom Campus, 2015
80

The validation of a workplace boredom scale within the South African context / Susanna Maria van Wyk

Van Wyk, Susanna Maria January 2015 (has links)
Boredom at work is a concern, as both employees and organisations are affected by the negative effects that this phenomenon holds. Workplace boredom is becoming an increasingly common occurrence within organisations and most employees are susceptible to it. To date, no reliable and valid scale for workplace boredom is available in South Africa. This study aimed to validate the Dutch Boredom Scale (DUBS) within the South African context in an attempt to provide a scale suitable for South African employees. The general objective of the study was to determine the reliability and validity of the workplace boredom scale (DUBS) within the South African context by means of investigating the reliability, factorial validity, convergent validity, predictive validity and discriminant validity. A cross-sectional research approach was utilised by means of a random convenience sample (N = 490) from organisations within the manufacturing and logistics sectors. The reliability of the workplace boredom scale was established by investigating the alpha and omega values. Confirmatory factor analysis (CFA) was used to determine the factor structure of the DUBS and to ascertain factorial validity. In order to prove convergent and discriminant validity, the relationship between workplace boredom and similar theoretical constructs (work engagement, workload, job satisfaction and organisational commitment) as well as constructs assumed to differ from work place boredom (i.e. gender) was investigated. Finally, regression with regard to one-directional relationships was examined between workplace boredom and appropriate outcomes (work engagement, organisational commitment and job satisfaction) in order to establish predictive validity. The results indicate that the DUBS consists of a one-factor structure, and that this factor has acceptable reliability. Relationships between workplace boredom and work engagement, workload, job satisfaction, organisational commitment and turnover intention were negatively and practically significantly correlated. No significant relationship existed between workplace boredom and gender. Workplace boredom had significant negative regressions to work engagement, job satisfaction and organisational commitment. Recommendations are made for use in practice and additionally for future research. / MCom (Industrial Psychology), North-West University, Potchefstroom Campus, 2015

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