The relationship between conscientiousness, extraversion and leadership effectiveness among local government managers in Bisho and East London
- Authors: Bell, Clement
- Date: 2012
- Subjects: Extraversion -- South Africa -- Eastern Cape , Leadership -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Big Five model , Public officers , Role conflict , Conscience -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: vital:11556 , http://hdl.handle.net/10353/d1007116 , Extraversion -- South Africa -- Eastern Cape , Leadership -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Big Five model , Public officers , Role conflict , Conscience -- South Africa -- Eastern Cape
- Description: This study investigated the relationship between conscientiousness, extraversion, and leadership effectiveness among the local government managers in Bisho and East London. Conscientiousness and extraversion were used as independent variables in the study while leadership effectiveness was used as the dependent variable. The data was collected from a sample of 222 local government managers using a self-designed biographical and occupational questionnaire. To measure conscientiousness and extraversion, a 24-item 5-point rating scale adopted from Finchan & Rhodes (2005) was used. To measure leadership effectiveness, a 6-item 5-point derailment rating scale adopted from Lombardo & McCauley (1994) was used. Data analysis was done using various statistical techniques, including t-tests, Pearson Product Moment Correlation Technique and Multiple Regression Analysis. The results indicated that both conscientiousness and extraversion are strongly associated with leadership effectiveness. Conscientiousness was also strongly associated with the individual components of leadership effectiveness, interpersonal relationships; molding a staff; making strategic transitions; follow-through and ability to work independently. Extraversion was also strongly associated with the individual components of leadership effectiveness, molding a staff; making strategic transitions; strategic similarities with management; follow-through and ability to work independently. Although conscientiousness and extraversion combined were found to have an additive effect on leadership effectiveness, conscientiousness accounts for a higher proportion of variance in leadership effectiveness than extraversion. Finally, the results also indicated that age was strongly associated with leadership effectiveness. The study therefore recommends that organisations should use conscientiousness and extraversion when selecting individuals for leadership positions.
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- Date Issued: 2012
Development of a degreasing and anti-fogging formulation for wet wipe application for automotive glass surfaces
- Authors: Bosch, Tanya
- Date: 2012
- Subjects: Porous materials -- Transport properties , Hydrophobic surfaces , Vapor degreasing , Cleaning compounds , Water-soluble polymers
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10418 , http://hdl.handle.net/10948/d1013177
- Description: It was the objective of this project to provide a glass cleaner formulation for a wet wipe application with cleaning and anti-fogging properties. This glass cleaner formulation was developed for automotive glass i.e. interior of windscreens. This formulation relates to a glass cleaner with a composition comprising of: (a) a blend of amphoteric surfactants; (b) a solvent system with a combination of glycol ethers; and (c) an aqueous solvent system. This glass formulation must provide good cleaning properties while also providing good wetting and sheeting properties to assist with anti-fogging properties. The objectives were obtained using 2 specific approaches: The first was by using a blend of 2 amphoteric surfactants in an alkaline medium, allowing the glass surface to become more hydrophilic which will also assist with reduction of surface tension on the glass surface. The second was by using the glycol ethers that have good coupling properties and surface tension reducing properties. The formulation was evaluated using commercial standard test methods as per the industry. A predictive model was successfully obtained for each of the five criteria that were evaluated using the 25 formulations derived from the statistical design. There were variables and variable interactions that were antagonistic for some of the criteria which were found to be synergistic for others. To achieve satisfactory cleaning, the fogging rating had to be compromised.
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- Date Issued: 2012