A process maturity framework of information security policy development life cycle
- Authors: Tuyikeze, Tite
- Date: 2014-12
- Subjects: Computer security , Information technology , Computer crimes
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/26797 , vital:66010
- Description: Information security policy development involves more than policy formulation and implementation. Unless organisations explicitly recognise the various steps required in the development of a security policy, they run the risk of developing policies that are poorly thought out, incomplete, redundant and, irrelevant and which will not be fully supported by the users. This study argues that an information security policy has an entire life cycle through which it must pass through during its useful lifetime. A content analysis on information security policy development methods was conducted using secondary sources in the relevant literature. The outcome of the content analysis resulted in the proposal of a framework of information security policy development and implementation. The proposed framework outlines the various steps required in the development, implementation and enforcement of an effective information security policy. A survey of 400 security professionals was conducted in order to evaluate the concepts contained in the framework.This study also emphasises the importance of integrating a security maturity assessment process into the information security policy development life cycle. A key finding of this study is the proposed maturity assessment framework which offers a structured methodology for evaluating the maturity level of an information security policy. The framework presents an integrated and holistic approach to ensure the incremental process maturity of the organisation’s information security policy development process. In addition, organisations using the proposed framework will be able both to determine the current maturity levels of their information security policy development process and also to plan enhancements in the correct sequence. , Thesis (PhD) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-12
- Authors: Tuyikeze, Tite
- Date: 2014-12
- Subjects: Computer security , Information technology , Computer crimes
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/26797 , vital:66010
- Description: Information security policy development involves more than policy formulation and implementation. Unless organisations explicitly recognise the various steps required in the development of a security policy, they run the risk of developing policies that are poorly thought out, incomplete, redundant and, irrelevant and which will not be fully supported by the users. This study argues that an information security policy has an entire life cycle through which it must pass through during its useful lifetime. A content analysis on information security policy development methods was conducted using secondary sources in the relevant literature. The outcome of the content analysis resulted in the proposal of a framework of information security policy development and implementation. The proposed framework outlines the various steps required in the development, implementation and enforcement of an effective information security policy. A survey of 400 security professionals was conducted in order to evaluate the concepts contained in the framework.This study also emphasises the importance of integrating a security maturity assessment process into the information security policy development life cycle. A key finding of this study is the proposed maturity assessment framework which offers a structured methodology for evaluating the maturity level of an information security policy. The framework presents an integrated and holistic approach to ensure the incremental process maturity of the organisation’s information security policy development process. In addition, organisations using the proposed framework will be able both to determine the current maturity levels of their information security policy development process and also to plan enhancements in the correct sequence. , Thesis (PhD) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-12
An assessment of the role played by social protection in addressing poverty and vulnerability in Zimbabwe: the case of Zimbabwe
- Authors: Daitai, Joseph
- Date: 2014-12
- Subjects: Poverty -- Zimbabwe , Zimbabwe -- Economic conditions , Zimbabwe -- Social conditions
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25983 , vital:64639
- Description: The focus of this study was based on the role played by social protection programs to alleviate poverty. This was achieved through analyzing generally the various social assistance programs delivered by both the government and the non-governmental organizations in trying to alleviate the scourge of wide spread poverty in Zimbabwe. The study also clearly outlined the endless list of various factors that contributed to some economic depressions and recessions that affected the country ever since the dawn of new Zimbabwe at independence in April of 1980. This study places social protection within the wider context of social assistance and relates to both concepts to poverty alleviation and wellbeing of the Zimbabwean citizens. The research made use of one of the major approaches in social science which is the qualitative method. The use of qualitative technique reflects an attempt to ensure an in-depth understanding of the phenomena under study, that is, to understand the successes and challenges faced by the government and non-governmental organizations in alleviating poverty.The study adopted a qualitative research methodology and mainly desktop approach was used meaning that data used was obtained from secondary sources whereby already exciting data within the area of social protection is analyzed and a conclusion is reached. This paper analyses the field of social protection, viewed within the broader concept of social assistance programs. The analysis relates both social protection and social assistance programs focusing on the (WFP) programs of Vulnerable group Feeding (VGF) and the government of Zimbabwe’s Basic Education Assistance Module (BEAM), their contribution to poverty alleviation. This study widens the focus from conventional narrowly defined elements of social protection to a broader interpretation which emphasizes the interface between social protection and its contribution to poverty alleviation. The linkage to poverty alleviation is also thoroughly discussed; various government and nongovernmental interventions have been also discussed where appropriate. The study also argues that many forms of socio-economic vulnerability need to be addressed from the central level to the grassroots level and also that local institutional structures are very crucial in the successful design, implementation and monitoring of these interventions. The study also suggested a possible government social protection framework that can be implemented by the government in order to achieve remarkable change and achievement in the social protection field. Recommendations were also given as the way forward for the proper and positive existence of social protection in Zimbabwe. In the theoretical framework, the study used two theories as the back bone of the study; the Capability approach and the State Welfare theory. The findings of the study revealed that in Zimbabwe, there are quite a number of social assistance programs underway but the problems discovered are that the coverage of the programs is very much inadequate and unequal hence larger percentages of citizens in the country remain unattended to, the government does not have strong financial muscles to implement successful assistance programs, political interferences also hinder success of the programs implemented by non-state organizations and also a poor grass root involvement in these programs makes them fail to achieve their purpose. , Thesis (MSoc Dev) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-12
- Authors: Daitai, Joseph
- Date: 2014-12
- Subjects: Poverty -- Zimbabwe , Zimbabwe -- Economic conditions , Zimbabwe -- Social conditions
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25983 , vital:64639
- Description: The focus of this study was based on the role played by social protection programs to alleviate poverty. This was achieved through analyzing generally the various social assistance programs delivered by both the government and the non-governmental organizations in trying to alleviate the scourge of wide spread poverty in Zimbabwe. The study also clearly outlined the endless list of various factors that contributed to some economic depressions and recessions that affected the country ever since the dawn of new Zimbabwe at independence in April of 1980. This study places social protection within the wider context of social assistance and relates to both concepts to poverty alleviation and wellbeing of the Zimbabwean citizens. The research made use of one of the major approaches in social science which is the qualitative method. The use of qualitative technique reflects an attempt to ensure an in-depth understanding of the phenomena under study, that is, to understand the successes and challenges faced by the government and non-governmental organizations in alleviating poverty.The study adopted a qualitative research methodology and mainly desktop approach was used meaning that data used was obtained from secondary sources whereby already exciting data within the area of social protection is analyzed and a conclusion is reached. This paper analyses the field of social protection, viewed within the broader concept of social assistance programs. The analysis relates both social protection and social assistance programs focusing on the (WFP) programs of Vulnerable group Feeding (VGF) and the government of Zimbabwe’s Basic Education Assistance Module (BEAM), their contribution to poverty alleviation. This study widens the focus from conventional narrowly defined elements of social protection to a broader interpretation which emphasizes the interface between social protection and its contribution to poverty alleviation. The linkage to poverty alleviation is also thoroughly discussed; various government and nongovernmental interventions have been also discussed where appropriate. The study also argues that many forms of socio-economic vulnerability need to be addressed from the central level to the grassroots level and also that local institutional structures are very crucial in the successful design, implementation and monitoring of these interventions. The study also suggested a possible government social protection framework that can be implemented by the government in order to achieve remarkable change and achievement in the social protection field. Recommendations were also given as the way forward for the proper and positive existence of social protection in Zimbabwe. In the theoretical framework, the study used two theories as the back bone of the study; the Capability approach and the State Welfare theory. The findings of the study revealed that in Zimbabwe, there are quite a number of social assistance programs underway but the problems discovered are that the coverage of the programs is very much inadequate and unequal hence larger percentages of citizens in the country remain unattended to, the government does not have strong financial muscles to implement successful assistance programs, political interferences also hinder success of the programs implemented by non-state organizations and also a poor grass root involvement in these programs makes them fail to achieve their purpose. , Thesis (MSoc Dev) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-12
An evaluation of the impact of social media on youth political participation in South Africa's 2014 general election: the case of Fort Hare students
- Authors: Mhlomi, Yolisa
- Date: 2014-12
- Subjects: Political participation -- South Africa , Elections -- South Africa , Universities and colleges -- South Africa Maps
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26255 , vital:65225
- Description: The aim of this paper is to evaluate the impact that social media had on influencing youths to engage in political and civic participation in the campaigning for and national elections of 2014, South Africa. Different views may impact on the implementation and use of social networking sites for politics. Youths consist of a larger population in the country but young people are also considered to be apathetic in political activities. However, it is essential to understand the perceptions of youth as this strategy was implemented especially to reach out to them, as they are the beneficiaries of the democratic system as well as future leaders of the country. Using the quantitative method, 200 questionnaires were distributed to the respondents in the University of Fort Hare and analysed by the researcher. The results of the study show that, youth are not entirely apathetic to politics and the use of social media for campaigning was seen as having a positive impact on voters because it managed to shift some youth’s perspectives about voting and how important it is for them to participate in the electoral process. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-12
- Authors: Mhlomi, Yolisa
- Date: 2014-12
- Subjects: Political participation -- South Africa , Elections -- South Africa , Universities and colleges -- South Africa Maps
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26255 , vital:65225
- Description: The aim of this paper is to evaluate the impact that social media had on influencing youths to engage in political and civic participation in the campaigning for and national elections of 2014, South Africa. Different views may impact on the implementation and use of social networking sites for politics. Youths consist of a larger population in the country but young people are also considered to be apathetic in political activities. However, it is essential to understand the perceptions of youth as this strategy was implemented especially to reach out to them, as they are the beneficiaries of the democratic system as well as future leaders of the country. Using the quantitative method, 200 questionnaires were distributed to the respondents in the University of Fort Hare and analysed by the researcher. The results of the study show that, youth are not entirely apathetic to politics and the use of social media for campaigning was seen as having a positive impact on voters because it managed to shift some youth’s perspectives about voting and how important it is for them to participate in the electoral process. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-12
An evaluation of the impact of social media on youth political participation in South Africa's 2014 general election: the case of Fort Hare students
- Authors: Mhlomi, Yolisa
- Date: 2014-12
- Subjects: Political participation -- South Africa , Social media and college student , Elections -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/29065 , vital:76585
- Description: The aim of this paper is to evaluate the impact that social media had on influencing youths to engage in political and civic participation in the campaigning for and national elections of 2014, South Africa. Different views may impact on the implementation and use of social networking sites for politics. Youths consist of a larger population in the country but young people are also considered to be apathetic in political activities. However, it is essential to understand the perceptions of youth as this strategy was implemented especially to reach out to them, as they are the beneficiaries of the democratic system as well as future leaders of the country. Using the quantitative method, 200 questionnaires were distributed to the respondents in the University of Fort Hare and analysed by the researcher. The results of the study show that, youth are not entirely apathetic to politics and the use of social media for campaigning was seen as having a positive impact on voters because it managed to shift some youth’s perspectives about voting and how important it is for them to participate in the electoral process. , Thesis (MSoc Sci) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-12
- Authors: Mhlomi, Yolisa
- Date: 2014-12
- Subjects: Political participation -- South Africa , Social media and college student , Elections -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/29065 , vital:76585
- Description: The aim of this paper is to evaluate the impact that social media had on influencing youths to engage in political and civic participation in the campaigning for and national elections of 2014, South Africa. Different views may impact on the implementation and use of social networking sites for politics. Youths consist of a larger population in the country but young people are also considered to be apathetic in political activities. However, it is essential to understand the perceptions of youth as this strategy was implemented especially to reach out to them, as they are the beneficiaries of the democratic system as well as future leaders of the country. Using the quantitative method, 200 questionnaires were distributed to the respondents in the University of Fort Hare and analysed by the researcher. The results of the study show that, youth are not entirely apathetic to politics and the use of social media for campaigning was seen as having a positive impact on voters because it managed to shift some youth’s perspectives about voting and how important it is for them to participate in the electoral process. , Thesis (MSoc Sci) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-12
De-industrialisation and the economic crisis in Zimbabwe
- Authors: Dlamini, Trinity N
- Date: 2014-12
- Subjects: Community life , Land reform -- Zimbabwe , Sustainable development -- Zimbabwe
- Language: English
- Type: Master's thesis , text
- Identifier: http://hdl.handle.net/10353/25915 , vital:64563
- Description: Zimbabwe has faced massive de-industrialization in the past decade. Decline in manufacturing production has immensely contributed to the economic crisis that hit the country since 1997. Most scholars have regarded the land reform program as the main contributor to the economic crisis but this study reveals how industrial decline led to the same crisis. Sustainable economic growth should be consistent with high levels of employment. This can be achieved through a strong role by a developmental state with autonomy over industrial development and guiding the process of capital accumulation. During the Unilateral Declaration of Independence (UDI) period, there were high levels of economic growth with the manufacturing sector emerging as the leading sector in the country`s economy. However, this growth failed to translate into economic development. The UDI regime had favoured capital-intensive production, controls on trade, foreign currency and the exchange rate system. With the attainment of independence, the post-independence government had to alter policies so as to expand productivity and create employment opportunities for the previously marginalized black people. This study notes that the state failed to invest accumulated capital and diversify production in the years it had achieved strong economic growth. The state did not address the issue of transformation of colonial production processes through policy. It failed to promote labour-intensive production and there was inadequate investment in expanding the manufacturing sector. The Zimbabwean economy has the potential to generate significant investible capital but it is never reinvested locally in a more balanced and integrated pattern of development. Even with the liberalization of the economy in 1991 through the Economic Structural Adjustment Program (ESAP), the country never achieved the targeted economic growth. Focus further shifted towards investing on capital-intensive production in the agricultural sector at the expense of labour-intensive industries. Therefore, the decline in manufacturing production in the early 1990s led to the economic crisis in Zimbabwe. , Thesis (MSoc) -- Faculty of Management and Commerce , 2014
- Full Text:
- Date Issued: 2014-12
- Authors: Dlamini, Trinity N
- Date: 2014-12
- Subjects: Community life , Land reform -- Zimbabwe , Sustainable development -- Zimbabwe
- Language: English
- Type: Master's thesis , text
- Identifier: http://hdl.handle.net/10353/25915 , vital:64563
- Description: Zimbabwe has faced massive de-industrialization in the past decade. Decline in manufacturing production has immensely contributed to the economic crisis that hit the country since 1997. Most scholars have regarded the land reform program as the main contributor to the economic crisis but this study reveals how industrial decline led to the same crisis. Sustainable economic growth should be consistent with high levels of employment. This can be achieved through a strong role by a developmental state with autonomy over industrial development and guiding the process of capital accumulation. During the Unilateral Declaration of Independence (UDI) period, there were high levels of economic growth with the manufacturing sector emerging as the leading sector in the country`s economy. However, this growth failed to translate into economic development. The UDI regime had favoured capital-intensive production, controls on trade, foreign currency and the exchange rate system. With the attainment of independence, the post-independence government had to alter policies so as to expand productivity and create employment opportunities for the previously marginalized black people. This study notes that the state failed to invest accumulated capital and diversify production in the years it had achieved strong economic growth. The state did not address the issue of transformation of colonial production processes through policy. It failed to promote labour-intensive production and there was inadequate investment in expanding the manufacturing sector. The Zimbabwean economy has the potential to generate significant investible capital but it is never reinvested locally in a more balanced and integrated pattern of development. Even with the liberalization of the economy in 1991 through the Economic Structural Adjustment Program (ESAP), the country never achieved the targeted economic growth. Focus further shifted towards investing on capital-intensive production in the agricultural sector at the expense of labour-intensive industries. Therefore, the decline in manufacturing production in the early 1990s led to the economic crisis in Zimbabwe. , Thesis (MSoc) -- Faculty of Management and Commerce , 2014
- Full Text:
- Date Issued: 2014-12
Employee Value Proposition (EVP) and employee engagement in a leading South African car rental company
- Authors: Mtati, Yanela
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53330 , vital:45134
- Description: The car rental industry in South Africa is a highly competitive sector. The industry’s players are constantly faced with the challenge of finding ways in which to enhance their competitiveness. One of the most important challenges for organisations operating in this industry is to deliver the best service to their customers, hence ensuring they retain customer loyalty, growth and securing future profitability. While a number of competitors may rely on various competitive strategies such as lower prices, it could become increasingly challenging for others to adopt similar approaches without comprising profitability. To overcome this challenge, together with Barloworld, Avis has implemented various employment engagement strategies with the aim of attracting, empowering, and retaining an engaged workforce. Research has shown that employees provide organisations with sustainable competitive advantage. More specifically, it has shown that engaged employees outperform disengaged employees. The differentiating factor for organisations in the pursuit of competitive advantage would therefore be an engaged workforce. In order to remain competitive, Avis realised that their employees area source of competitive advantage. In the year 2013, Avis packaged and introduced EVP as a human resources strategy towards winning an engaged workforce. Some of the objectives for taking on this strategy were to increase job satisfaction and motivation amongst employees and thus result in higher job performance. The main purpose of this study was to measure the impact that the introduction of EVP had on employee engagement at Avis. Introducing a structured EVP plan within this organisation was aimed to increase employee engagement and thus, this study aimed to measure the impact of this intervention. A literature review was conducted to expand on the various definitions of EVP, employee engagement and the elements that influence and impact these variables. This research revealed that engaged employees make positive contributions to key business outcomes such as financial performance, productivity and customer satisfaction. An empirical study was conducted by means of a survey with a questionnaire as data collecting tool. The purpose of the structured questionnaire was to validate the findings obtained from the theoretical overview and to assess employees’ perceptions of the EVP elements, engagement factors and the impact of engagement on the organisational success. The population comprised of 142employeesand 65% a response rate was obtained. The key findings of the study indicated that in general employees are engaged and committed to the vision of the organisation. It also indicated that the introduction of EVP improved the manner in which employees’ viewed their leaders and created a leadership culture that was conducive to the success of the organisation. Furthermore, the study validated the existence of a strong positive relationship between EVP, employee motivation, leadership culture, employee retention, compensation and employee engagement. This study provided direction and feedback in the organisation’s attempt to improve engagement levels and ultimately in the pursuit of competitive advantage. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMMU Business School, 2014.
- Full Text:
- Date Issued: 2014-12
- Authors: Mtati, Yanela
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53330 , vital:45134
- Description: The car rental industry in South Africa is a highly competitive sector. The industry’s players are constantly faced with the challenge of finding ways in which to enhance their competitiveness. One of the most important challenges for organisations operating in this industry is to deliver the best service to their customers, hence ensuring they retain customer loyalty, growth and securing future profitability. While a number of competitors may rely on various competitive strategies such as lower prices, it could become increasingly challenging for others to adopt similar approaches without comprising profitability. To overcome this challenge, together with Barloworld, Avis has implemented various employment engagement strategies with the aim of attracting, empowering, and retaining an engaged workforce. Research has shown that employees provide organisations with sustainable competitive advantage. More specifically, it has shown that engaged employees outperform disengaged employees. The differentiating factor for organisations in the pursuit of competitive advantage would therefore be an engaged workforce. In order to remain competitive, Avis realised that their employees area source of competitive advantage. In the year 2013, Avis packaged and introduced EVP as a human resources strategy towards winning an engaged workforce. Some of the objectives for taking on this strategy were to increase job satisfaction and motivation amongst employees and thus result in higher job performance. The main purpose of this study was to measure the impact that the introduction of EVP had on employee engagement at Avis. Introducing a structured EVP plan within this organisation was aimed to increase employee engagement and thus, this study aimed to measure the impact of this intervention. A literature review was conducted to expand on the various definitions of EVP, employee engagement and the elements that influence and impact these variables. This research revealed that engaged employees make positive contributions to key business outcomes such as financial performance, productivity and customer satisfaction. An empirical study was conducted by means of a survey with a questionnaire as data collecting tool. The purpose of the structured questionnaire was to validate the findings obtained from the theoretical overview and to assess employees’ perceptions of the EVP elements, engagement factors and the impact of engagement on the organisational success. The population comprised of 142employeesand 65% a response rate was obtained. The key findings of the study indicated that in general employees are engaged and committed to the vision of the organisation. It also indicated that the introduction of EVP improved the manner in which employees’ viewed their leaders and created a leadership culture that was conducive to the success of the organisation. Furthermore, the study validated the existence of a strong positive relationship between EVP, employee motivation, leadership culture, employee retention, compensation and employee engagement. This study provided direction and feedback in the organisation’s attempt to improve engagement levels and ultimately in the pursuit of competitive advantage. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMMU Business School, 2014.
- Full Text:
- Date Issued: 2014-12
The use of a rapid incineration field test for determining soil organic carbon in the Southern Cape Region
- Authors: Ackhurst, Albert Arthur
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53336 , vital:45135
- Description: Knowledge of soil organic carbon levels is important both for agricultural effectiveness and soil carbon sequestration accounting, especially against the backdrop of increased climate change impacts and pressure on food production landscapes. However, current methods for soil carbon determination are expensive, energy intensive, time consuming and potentially hazardous leading to a call for alternative methods, which should be cheap, fast, simple, accurate, safe and usable where resources and soil analysis laboratories are limited. To this end the student invented a novel rapid incineration field test (RIFT) for determining soil organic carbon and tested its validity in this study. This method incorporates principles found in dry combustion as well as loss-on-ignition and quantifying organic carbon through gravimetric analysis. In order to illustrate effectiveness and accuracy it was necessary to correlate RIFT with a reference method, in this instance dry combustion with a Leco device as well as another commonly used indirect method namely the Walkley-Black wet chemical oxidation method. Samples from eleven soil forms were collected from the Southern Cape region and they were subjected to the three testing methods. It was found that RIFT is indeed as effective and in 72% of the soil forms even more effective than Walkley-Black. Furthermore, it was ascertained whether the accuracy of RIFT can be improved by correcting for clay content. The correlation of RIFT with clay % was not very significant and clay % as a variable was therefore not used in this study to obtain further refinement of RIFT predictions. Another finding was also that RIFT illustrated less variability than both the Leco and Walkley-Black methods. Lastly it was ascertained that the RIFT device and methodology is indeed cost effective, energy efficient, fast and safe in terms of the need to use potentially hazardous chemicals. , Thesis (MA) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text:
- Date Issued: 2014-12
- Authors: Ackhurst, Albert Arthur
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53336 , vital:45135
- Description: Knowledge of soil organic carbon levels is important both for agricultural effectiveness and soil carbon sequestration accounting, especially against the backdrop of increased climate change impacts and pressure on food production landscapes. However, current methods for soil carbon determination are expensive, energy intensive, time consuming and potentially hazardous leading to a call for alternative methods, which should be cheap, fast, simple, accurate, safe and usable where resources and soil analysis laboratories are limited. To this end the student invented a novel rapid incineration field test (RIFT) for determining soil organic carbon and tested its validity in this study. This method incorporates principles found in dry combustion as well as loss-on-ignition and quantifying organic carbon through gravimetric analysis. In order to illustrate effectiveness and accuracy it was necessary to correlate RIFT with a reference method, in this instance dry combustion with a Leco device as well as another commonly used indirect method namely the Walkley-Black wet chemical oxidation method. Samples from eleven soil forms were collected from the Southern Cape region and they were subjected to the three testing methods. It was found that RIFT is indeed as effective and in 72% of the soil forms even more effective than Walkley-Black. Furthermore, it was ascertained whether the accuracy of RIFT can be improved by correcting for clay content. The correlation of RIFT with clay % was not very significant and clay % as a variable was therefore not used in this study to obtain further refinement of RIFT predictions. Another finding was also that RIFT illustrated less variability than both the Leco and Walkley-Black methods. Lastly it was ascertained that the RIFT device and methodology is indeed cost effective, energy efficient, fast and safe in terms of the need to use potentially hazardous chemicals. , Thesis (MA) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text:
- Date Issued: 2014-12
WAIS-IV test performance in the South African context: a comparison between existing grade 12 WAIS-III norms with grade 12 WAIS-IV for populations that were educated in former-DET schools
- Klopper, Coenraad Christoffel
- Authors: Klopper, Coenraad Christoffel
- Date: 2014-12
- Subjects: Intelligence tests , Wechsler Adult Intelligence Scale , Psychological tests
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25891 , vital:64561
- Description: Accurate IQ assessment in the field of psychology is a constant pursuit and an ethical requirement in the field of psychology. In the South African cross cultural context, the use of within group norms are very important in order to improve the accuracy and interpretive value of psychometric tests. This is due to differences between cultural groups in South Africa in terms of IQ test performance of which the biggest mediating factor is quality of education. Shuttleworth-Edwards et al. (2013), performed cross cultural normative research on the WAIS-III in which participants were stringently stratified for age, level of education, quality of education, race and language. The current study is a partial duplication of the WAIS-III normative study by Shuttleworth-Edwards et al. (2013). The sub-group in that study that indicated the most significant lowering relative to the US/UK standardisation of the WAIS-III was duplicated in this study and tested with the WAIS-IV. This group included participants stratified for race (Black South African), language (Xhosa speaking), level of education (Grade 12) and quality of education (previous Department of Education and Training (former-DET) schools). The WAIS-IV results of the current study were statistically compared with the WAIS-III results from Shuttleworth-Edwards et al. (2013). No statistically significant differences were found between the WAIS-III test performance and WAIS-IV test performance in terms of scaled score comparisons, index score comparisons and full scale index comparisons. Further comparisons were made between male and female and urban and rural participants. Significant differences were found between males and females on the verbal comprehension index. No significant differences were found between the urban and rural participants. , Thesis (MA) -- Faculty of Social Science and Humanities, 2021
- Full Text:
- Date Issued: 2014-12
- Authors: Klopper, Coenraad Christoffel
- Date: 2014-12
- Subjects: Intelligence tests , Wechsler Adult Intelligence Scale , Psychological tests
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25891 , vital:64561
- Description: Accurate IQ assessment in the field of psychology is a constant pursuit and an ethical requirement in the field of psychology. In the South African cross cultural context, the use of within group norms are very important in order to improve the accuracy and interpretive value of psychometric tests. This is due to differences between cultural groups in South Africa in terms of IQ test performance of which the biggest mediating factor is quality of education. Shuttleworth-Edwards et al. (2013), performed cross cultural normative research on the WAIS-III in which participants were stringently stratified for age, level of education, quality of education, race and language. The current study is a partial duplication of the WAIS-III normative study by Shuttleworth-Edwards et al. (2013). The sub-group in that study that indicated the most significant lowering relative to the US/UK standardisation of the WAIS-III was duplicated in this study and tested with the WAIS-IV. This group included participants stratified for race (Black South African), language (Xhosa speaking), level of education (Grade 12) and quality of education (previous Department of Education and Training (former-DET) schools). The WAIS-IV results of the current study were statistically compared with the WAIS-III results from Shuttleworth-Edwards et al. (2013). No statistically significant differences were found between the WAIS-III test performance and WAIS-IV test performance in terms of scaled score comparisons, index score comparisons and full scale index comparisons. Further comparisons were made between male and female and urban and rural participants. Significant differences were found between males and females on the verbal comprehension index. No significant differences were found between the urban and rural participants. , Thesis (MA) -- Faculty of Social Science and Humanities, 2021
- Full Text:
- Date Issued: 2014-12
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