Thesis (Ph. D.)--University of Wisconsin--Madison, 1964. / Typescript. Vita. Abstracted in Dissertation abstracts, v. 25 (1964) no. 6, p. 3672. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 2006. / Title from first page of PDF file. Includes bibliographical references (p. 92-106).

Thesis (Ph. D.)--Dept. of Political Science and School of Business and Public Administration. University of Missouri--Kansas City, 2004. / "A dissertation in political science and public affairs and administration." Advisor: Dale A. Neuman. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Feb. 24, 2006. Includes bibliographical references (leaves 458-487). Online version of the print edition.

Intelligence and executive functioning are multidimensional, related constructs (Decker, Dean, & Hill, 2007; Miyake, Friedman, Emerson, Witzki, & Howerter, 2000). Research suggests that fluid intelligence and certain components of executive functioning are related, with an emphasis in the literature placed on the relations between fluid intelligence and working memory (Salthouse, 2005; Salthouse & Davis, 2006). However, limited published research exists about the relations between fluid intelligence and other components of executive functioning. There also is debate in the literature about the relations between crystallized intelligence and executive functioning (Friedman et al., 2006). Some researchers suggest that the two are not related (Pennington, 1994), whereas others propose that there are relations between the constructs (Cowan, 1995). However, beyond working memory, limited information exists about the relations between crystallized intelligence and other executive functioning components. Denckla (1996) proposed that the relations between fluid intelligence and components of executive functioning are gradated; however, this area of research is limited. Furthermore, no study was found that reported gradated relations between multiple components of executive functioning and crystallized intelligence. Therefore, the primary purpose of this study was to examine the potentially gradated relations between fluid and crystallized intelligence with multiple components of executive functioning with the same sample. Findings from my study indicated that the relations between fluid and crystallized intelligence and components of executive functioning are gradated. Some executive skills shared similar relations with the intelligence constructs, whereas other relations were unique. It was found that Working Memory/Shifting shared similar relations with fluid and crystallized intelligence constructs. In addition, unique relations also were found between Problem Solving/Planning and fluid intelligence and between Nonverbal Fluency/Inhibition and crystallized intelligence constructs. This indicates that there are common and unique neurocognitive relations between aspects of executive skills and intelligence. Furthermore, the relations between fluid and crystallized intelligence and components of Baddeley's working memory model also were tested. Relations were found between visuospatial working memory and fluid intelligence; however, no other relations were found. To provide some clinical insight, the relations between multiple executive skills and a standardized academic achievement measure (ACT) also were examined while controlling for fluid and crystallized aspects of intelligence. It was found that controlling for crystallized intelligence yielded better understanding about the relations between executive functioning and academic achievement. Overall, across the analyses conducted within this study some findings replicated existing information in the literature and new findings were found that contribute to the literature. The benefits, clinical implications, and limitations of this study are discussed. Suggestions for future research also are provided.

M.Com. / Please refer to full text to view abstract

M.Com. (Industrial Psychology) / The quality of its managers is of great importance to any organisation and therefore it is essential that only suitable persons are appointed in managerial positions. Various techniques have been developed for the identification of managers of which some are very expensive. If managers are characterized by certain biographical traits, this information, which can be obtained cheaply, can be used to identify persons with managerial potential at an early stage. The hypotheses that have been formulated are that persons with managerial potential and persons without managerial potential differ significantly with regard to a number of biographical variables, and that managerial potential can be significantly predicted by means of certain biographical variables. In order to test these hypotheses information was obtained by means of two instruments. Managerial potential scores were obtained by means of an assessment centre whereafter it was transformed and summed. The upper and lower 27% were used as cut-off points in order to identify the managerial potential group and the non-managerial potential group, respectively. Biographical information was obtained by administering a biographical inventory consisting of 40 questions to persons attending the assessment center...

D.Phil. / There is an unprecedented crisis in the leadership of contemporary large-organizations. Real leadership is rare – that is, leadership which is effective and authentic, having the courage to serve others even under trying circumstances. Perhaps the prime reason for this is that management and leadership per sé, have never been professionalized, in that there is no definite body of theory and knowledge which leaders must understand and use. There are no entry requirements, expectations or professional standards. There is no continuing learning and no competence reviews. The evidence of this is overwhelming – at individual, relationship and team levels of the organization – but ultimately, it is apparent at the organizational level where culture and character exist, which, if research is correct, is the single biggest determinant in any organization’s success or failure. In the executive leader realm, things move at warp speed. Things are changing at such a dizzying rate, and there are so many stakeholders competing for the leader’s time and energy, that there is any wonder there are in fact any healthy, effective executives around. Unfortunately, many of them fall prey to the myriad challenges, dilemmas and struggles that confront them, and the result is an abundance of dysfunctional, distressed and impaired executives, the effects of which ripple throughout the company; as the Spanish saying goes, “Fish start to smell at the head.”

M.Com. / Please refer to full text to view abstract

Globalisation has increased the level of competition in the world economy and for South African organisations to be in a position to compete on a sustainable basis, they need competitive advantage. The art of leadership is required to unlock these advantages by understanding the new reality, new leadership roles and skills requirements. The purpose of this study is to explore the understanding of South African executive leaders in relation to the literature in order to establish whether South African executive leaders are aware of the new reality, the new role they have to play within their organisations and whether they have the skills to do so. The exploratory nature of this topic lends itself to an inductive theory building philosophy and a qualitative research method is followed to explore the topic. Face-to-face semi-structured interviews are conducted with eleven South African executives. The sample is extracted from the population by using non-probability quota, judgemental and convenience sampling techniques. An inductive analysis is performed on the data gathered in order to obtain the required results. A clear understanding of what their competitive advantages are is lacking, which in turn is limiting on the executive’s ability to extract value from these. The new roles of leadership are understood, but not mastered due to the fact that the skills required to master these roles are known to the executives but not internalised. Recommendations are made by the researcher to enable this. / Dissertation (MBA)--University of Pretoria, 2010. / Gordon Institute of Business Science (GIBS) / unrestricted

International research into the impact of CEO turnover on organisational share price performance has yielded inconsistent results. This research aims to study the impact of CEO turnover on the South African environment, and in particular on South African listed companies. The study is conducted looking at both the impact at the date of the announcement of the CEO change, and examines the impact of forced versus voluntary turnover, as well as internal versus external CEO replacement. There were 74 turnover events between 2001 and 2003, which were included in the study at announcement date. Only 28 of these resulted in the CEO remaining in office for a period of at least three years, and this smaller sample was used to examine the effect of CEO turnover over the three years after appointment. Event study methodology was used in the research. The research observed a statistically significant negative impact on share prices at the date of announcement of CEO turnover, but this was negated by statistically significant positive returns when looking at the day prior to the announcement. No statistically significant results were observed for internal versus external CEO replacement. Forced CEO turnover had a negative effect on share price performance when compare to voluntary turnover, but this was not statistically significant. No significant results were observed for the three years post the appointment of the new CEO. The conclusion of the research is that the impact of CEO turnover is not significant at announcement date or over time. / Dissertation (MBA)--University of Pretoria, 2010. / Gordon Institute of Business Science (GIBS) / unrestricted