The heterogeneous population in South Africa when coupled with the political trend set by the government of the day is of the utmost importance to the country and its people. The strive towards an educational system in which inhabitants. can achieve their potential, economic growth can be promoted, the quality of living can be improved and equal standards of education can become reality, cannot be realized without enough, well trained and talented teachers. According to the HSRC-investigation into Education (1981), one of the most urgent problems in black education is the critical shortage of professional and efficient teachers. This aspect has thus to do with both the quantity and quality of the teachers. The population explosion in the black communities and the resulting increase in the number of scholars demanding education are reasons for great concern. The number of black teachers being trained, must increase tremendously to cope with the growing demand. The standard of education is determined by two factors namely the quality of the person being trained and the quality of his training. To train and supply new teachers one has to reckon with both the qualitative and quantitative aspects. In supplying enough, new teachers, quality should however never be sacrificed for quantity. A balance between the two is necessary to ensure that good education will be provided for the increasing number of black children. The following aims have been formulated for this research * An evaluation of teacher training amongst blacks as it developed from the earliest times in order to determine causes for present problems. * An evaluation of present educational opportunities for black teachers to determine deficiencies. * Stipulation of directives and measures to combat the expected shortage of professionally, trained teachers. In addition to the formulation of aims the following have also received consideration in Chapter one * research methodology : the methods that have been employed in the course of the research are a study of relevant literature, the method of fundamental contemplation and the historically descriptive method * delimitation of areas and explanation of certain concepts * the structure of the research. Following the exhaustive study of the literature, Chapter two deals with the historic course of events in black teacher training from traditional times till 1978. The juridical basis and management of teacher training as a responsibility of the Department of Education and Training is discussed in Chapter three. Aspects of policy and management of education in general and teacher training specifically are also explained. The HSRC-investigation into Education (1981) is discussed as well as the Government's reaction and implementation of some of the recommendations. Chapter four deals with present training opportunities for black teachers at colleges of education. Although the initial training of teachers is emphasized, further training and in-service training is also discussed. The structures of the different teachers' diplomas namely the Pre-Primary Teachers Diploma (PPTD), Junior Primary Teachers Diploma (JPTD), Senior Primary Teachers Diploma (SPTD), Secondary Teachers Diploma (STD) and the STD Technical courses as well as the examining, certifying and requirements for enrolment are discussed. In Chapter five an evaluation is done of teacher training. Certain criteria with which an institution for teacher training should comply, are laid down. In this evaluation certain problem areas in black education are identified, and possible solutions are given to combat and overcome these problems. The summation, conclusion and recommendations end the thesis in Chapter six. Recommendations for further research are also made in this chapter. / Thesis (MEd)--PU vir CHO, 1988

The heterogeneous population in South Africa when coupled with the political trend set by the government of the day is of the utmost importance to the country and its people. The strive towards an educational system in which inhabitants. can achieve their potential, economic growth can be promoted, the quality of living can be improved and equal standards of education can become reality, cannot be realized without enough, well trained and talented teachers. According to the HSRC-investigation into Education (1981), one of the most urgent problems in black education is the critical shortage of professional and efficient teachers. This aspect has thus to do with both the quantity and quality of the teachers. The population explosion in the black communities and the resulting increase in the number of scholars demanding education are reasons for great concern. The number of black teachers being trained, must increase tremendously to cope with the growing demand. The standard of education is determined by two factors namely the quality of the person being trained and the quality of his training. To train and supply new teachers one has to reckon with both the qualitative and quantitative aspects. In supplying enough, new teachers, quality should however never be sacrificed for quantity. A balance between the two is necessary to ensure that good education will be provided for the increasing number of black children. The following aims have been formulated for this research * An evaluation of teacher training amongst blacks as it developed from the earliest times in order to determine causes for present problems. * An evaluation of present educational opportunities for black teachers to determine deficiencies. * Stipulation of directives and measures to combat the expected shortage of professionally, trained teachers. In addition to the formulation of aims the following have also received consideration in Chapter one * research methodology : the methods that have been employed in the course of the research are a study of relevant literature, the method of fundamental contemplation and the historically descriptive method * delimitation of areas and explanation of certain concepts * the structure of the research. Following the exhaustive study of the literature, Chapter two deals with the historic course of events in black teacher training from traditional times till 1978. The juridical basis and management of teacher training as a responsibility of the Department of Education and Training is discussed in Chapter three. Aspects of policy and management of education in general and teacher training specifically are also explained. The HSRC-investigation into Education (1981) is discussed as well as the Government's reaction and implementation of some of the recommendations. Chapter four deals with present training opportunities for black teachers at colleges of education. Although the initial training of teachers is emphasized, further training and in-service training is also discussed. The structures of the different teachers' diplomas namely the Pre-Primary Teachers Diploma (PPTD), Junior Primary Teachers Diploma (JPTD), Senior Primary Teachers Diploma (SPTD), Secondary Teachers Diploma (STD) and the STD Technical courses as well as the examining, certifying and requirements for enrolment are discussed. In Chapter five an evaluation is done of teacher training. Certain criteria with which an institution for teacher training should comply, are laid down. In this evaluation certain problem areas in black education are identified, and possible solutions are given to combat and overcome these problems. The summation, conclusion and recommendations end the thesis in Chapter six. Recommendations for further research are also made in this chapter. / Thesis (MEd)--PU vir CHO, 1988

This study was conducted in a forest with selectively exploration, in the Experimental Field of EMBRAPA Eastern Amazon, MOJU - PA. The objective was to study the behavior of natural regeneration and transplanted seedlings of Tetragastris altissima (Aubl.) Swart. Nine gaps were selected, which were grouped into classes of size, which were implanted a plot of 2 m x 2 m e another of 5 m x 5 m in the centre and four other parcels for each position: Edge, 20 m to 40 m of clearing within the forest and for each direction: North, South, East and West were implanted three tranches. The seedlings were assessed by survival and growth of T. altissima (Aubl.) Swart, during nine years of observation. To survive in the center of clearings, the plantation showed the best results (33,89%) compared to natural regeneration (11,11%). For the distances and directions, the survival of natural regeneration was better to the south at 40 m away from the center of gaps with 11,11% and the West presented to 20 m 7,41%. For planting the species showed 16,67% of survival in the eastern edge and 40m to the south, the best results for this analysis. The growth of the species in the centre was more significant in the planting (7,3 cm/year) than in natural regeneration (0,28 cm/year). In the distances and directions of growth was higher at 40 East to me in the West edge, 0,28 cm/year in natural regeneration, and the highest for the seedlings were transplanted in the eastern edge, where growth was 3,14 cm/ano. The species was established in better environment disturbed than in natural regeneration; both for survival, and for growth, trending to the first would be a viable silvicultural method for enrichment of forests. It is consistent plant species in the environments of radiation directly because of better results at the centre of gaps for the two analyses. The survival and growth of the species in relation to gradients north-south, east-west, was indifferent to this analysis, both for natural regeneration, as for the planting, demonstrating the character of species with ecological characteristics of the group of tolerant of shade. / Este estudo foi realizado em uma floresta explorada seletivamente, no Campo Experimental da EMBRAPA Amazônia Oriental, Moju – PA. O objetivo do trabalho foi estudar o comportamento da regeneração natural e das mudas transplantadas de Tetragastris altíssima (Aubl.) Swart, conhecida popularmente como breu almescla, através da taxa de sobrevivência e incremento médio anual. Foram selecionadas nove clareiras, as quais foram agrupadas em classes de tamanho, onde foram implantadas uma parcela de 2 m x 2 m e outra de 5 m x 5 m no centro e quatro outras parcelas para cada posição: borda, 20 m e 40 m da clareira para dentro da floresta, nas direções: Norte, Sul, Leste e Oeste. As mudas foram avaliadas através da sobrevivência e crescimento de T. altissima (Aubl.) Swart, durante nove anos de observação. Para a sobrevivência no centro das clareiras, o plantio apresentou os melhores resultados (33,89%) em comparação à regeneração natural (11,11%). Para as distâncias e direções, a sobrevivência da regeneração natural foi melhor ao Sul a 40 m distantes do centro das clareiras, em relação à bordadura, com 11,11% e ao Oeste a 20 m apresentou 7,41%. Para o plantio a espécie apresentou 16,67% de sobrevivência a Leste na Borda e a 40 m ao Sul, os melhores resultados para essa análise. O crescimento da espécie em relação ao centro foi mais significativo no plantio (7,3 cm/ano) do que na regeneração natural (0,28 cm/ano). Nas distâncias e direções o crescimento foi maior ao Leste a 40 m e ao Oeste na Borda, 0,28 cm/ano, na regeneração natural, e o maior para as mudas transplantadas foi na Borda ao Leste, onde o crescimento foi de 3,14 cm/ano. A espécie se estabeleceu melhor em ambiente de mudas transplantadas do que na regeneração natural, tanto para a sobrevivência, quanto para o crescimento, tendenciando que o primeiro seria um método silvicultural viável para enriquecimento de florestas. É coerente plantar a espécie em ambientes de radiação direta, devido aos melhores resultados no centro das clareiras para as duas análises. A sobrevivência e o crescimento da espécie em relação aos gradientes Norte-Sul, Leste-Oeste, foi indiferente para essa análise, tanto para a regeneração natural, quanto para o plantio, demonstrando o caráter de espécie com características do grupo ecológico das tolerantes a sombra.

Texte remanié de: Proefschrift--Letteren--Katholieke universiteit te Nijmegen, 1987. / Mention parallèle de titre ou de responsabilité : English stationers in Amsterdam, 1637-1724 : a history of the publishing and book-trade activities of the bookseller families Bruyning and Swart with a full and annotated reconstruction of their publishing lists, a bibliography and an index of names. Contient un résumé en anglais. Bibliogr. p. 361-383. Index.

Magister Artium (Development Studies) - MA(DVS) / Die doel van die navorsingsprojek is om die gesondheidsvoorsiening en -benutting van In klein landelike gemeenskap te ondersoek. Dit is egter nie moontlik om na die gesondheidsituasie van die inwoners in isolasie te kyk en terselfdertyd In volledige beeld van die gesondheid van die inwoners te kry nie. Die gesondheid van die individu, en die gemeenskap in die breë, is onlosmaaklik gekoppel aan die algemene welstand van die individu en die gemeenskap (Botha; 1984:2; Wilson & Ramphele; 1989:292). Van die siektes wat deur die armes ondervind word, kan direk of indirek na hul ekonomies-maatskaplike omstandighede teruggevoerword. Die armoede-verskynsels kan dus nie gekompartementaliseer word nie, maar daar moet noodwendig na die globale lewensopset van die teikengroep gekyk word as een aspek van die totale probleem uitgelig en bestudeer wil word. wilson en Ramphele (1989:4) het vier redes uitgesonder waarom In studie van die armoede-vraagstuk belangrik is: * die skade wat armoede aan die individu rig; * die negatiewe ekonomiese impak wat armoede op die individu het; * armoede is die manifestasie van groot ongelykhede, en * armoede is In simptoom van In dieperliggende probleem.

Motivation - Brain-derived neurotrophic factor (BDNF) is a protein complex, synthesised and secreted mainly by the central nervous system and is involved in neuronal maintenance. Research suggests that BDNF is implicated in various neurological and psychiatric diseases, while recent evidence suggests a role for the neurotrophin on the periphery as well. Indeed, the specific functional role of BDNF and its action mechanism in the cardiovascular system, especially in that of Africans, is yet to be determined. The cardiovascular health profile of black South Africans is a major concern as research has shown that this group suffers from an array of cardiovascular risk factors that may result in organ damage. Sub-clinical atherosclerosis or structural endothelial dysfunction contributes to ever-increasing morbidity and mortality in the world. However, no studies regarding the associations between BDNF and structural vascular disease have been undertaken relating to black African participants. Objectives - The objective of this study was to determine whether BDNF is associated with changes in ambulatory blood pressure (BP) and whether a relationship between BDNF and structural endothelial dysfunction exists in black African male and female participants, determined by cross sectional wall area (CSWA) and albumin:creatinine ratio (ACR). Methodology - The study included 172 black African teachers (82 males and 90 females) who were employed by the Kenneth Kaunda Education district of the North-West Province, South Africa. Ambulatory blood pressure recordings were obtained with the use of a Meditech CE120 CardioTens ® apparatus. Blood pressure readings were measured at 30 min intervals during the day and 60 min intervals during the night. Anthropometric measurements were performed in triplicate by registered level II anthropometrists according to standardised procedures. A high-resolution ultrasound scan with carotid intima-media thickness (CIMT) images from at least two optimal angles of the left and right common carotid artery were obtained using a SonoSite Micromaxx ultrasound system. The lumen diameter between the near and far wall of the lumen-intima interface and the averages of both the left and right common carotid arteries were calculated. Subsequently, the carotid cross-sectional wall area (CSWA) was calculated. Participants, who fasted overnight, provided eight-hour blood and urine samples to determine serum BDNF and metabolic markers, for example, hyperglycaemia (HbA1c) and gamma glutamyl transferase (GGT). Urinary albumin and creatinine levels were determined by means of a turbidimetric method with the use of a Unicel DXC 800 analyser from Beckman and Coulter (Germany) and expressed as a ratio between albumin and creatinine (ACR). BDNF median split x Gender interaction effects for structural ED justified stratification of BDNF into low and high (≤ / > 1.37 ng/ml) gender groups. Results and Conclusion - On average, male participants were overweight (BMI 25-30kg/m2) and abused more alcohol.21 African men revealed a vulnerable cardiometabolic profile with values exceeding cut–points (European Society of Hypertension). These men demonstrated increased acute and chronic glucose (HbA1c) levels indicating a pre-diabetic state; as well as a disturbed lipid profile with lower HdL and increased triglycerides. Overall BDNF levels were lower than reference ranges (6.97 – 42.6 ng/ml). The men revealed mean lower BDNF levels, ambulatory BP values exceeding guideline cut-points (ambulatory SBP > 130mmHg; DBP > 80mmHg) as well as a hypertensive state compared to their female counterparts. Pertaining to structural endothelial dysfunction, the mean ACR value in men exceeded normal laboratory values (< 3.5mg/mmol). The African women displayed an obese state with low grade inflammation (CRP, 12.27 ± 11.67mg/l). A single two-way ANCOVA interaction on main effects (BDNF median split x Gender) demonstrated significant interaction for CIMTf [F (1,164); 3.99, p=0.05] and cholesterol [F (1,164); 4.12, p=0.05]. Therefore, a median split approach was followed which stratified gender groups into lower (≤ 1.37 ng/ml) and higher BDNF levels (>1.37 ng/ml). The low BDNF men revealed higher cholesterol than the high BDNF group, independent of BMI and age. Only the low BDNF women indicated significantly higher values for structural vascular markers (p< 0.05) than the high BDNF female group. In conclusion, we accept our hypothesis, as hypertrophic remodelling of the carotid artery was associated with lower BDNF levels. This may imply attenuated or possibly down-regulated BDNF levels acting as a compensatory mechanism for the mean higher BP levels. In women, metabolic risk and hypertrophic remodelling were evident within higher circulating levels of BDNF, underpinning different underlying mechanisms for impaired neurotrophin health in men and women. Novel findings of BDNF revealed the impact of central neural regulation on the circulatory system, which may contribute to cardiometabolic risk in Africans. / MSc (Physiology), North-West University, Potchefstroom Campus, 2014

Motivation - Brain-derived neurotrophic factor (BDNF) is a protein complex, synthesised and secreted mainly by the central nervous system and is involved in neuronal maintenance. Research suggests that BDNF is implicated in various neurological and psychiatric diseases, while recent evidence suggests a role for the neurotrophin on the periphery as well. Indeed, the specific functional role of BDNF and its action mechanism in the cardiovascular system, especially in that of Africans, is yet to be determined. The cardiovascular health profile of black South Africans is a major concern as research has shown that this group suffers from an array of cardiovascular risk factors that may result in organ damage. Sub-clinical atherosclerosis or structural endothelial dysfunction contributes to ever-increasing morbidity and mortality in the world. However, no studies regarding the associations between BDNF and structural vascular disease have been undertaken relating to black African participants. Objectives - The objective of this study was to determine whether BDNF is associated with changes in ambulatory blood pressure (BP) and whether a relationship between BDNF and structural endothelial dysfunction exists in black African male and female participants, determined by cross sectional wall area (CSWA) and albumin:creatinine ratio (ACR). Methodology - The study included 172 black African teachers (82 males and 90 females) who were employed by the Kenneth Kaunda Education district of the North-West Province, South Africa. Ambulatory blood pressure recordings were obtained with the use of a Meditech CE120 CardioTens ® apparatus. Blood pressure readings were measured at 30 min intervals during the day and 60 min intervals during the night. Anthropometric measurements were performed in triplicate by registered level II anthropometrists according to standardised procedures. A high-resolution ultrasound scan with carotid intima-media thickness (CIMT) images from at least two optimal angles of the left and right common carotid artery were obtained using a SonoSite Micromaxx ultrasound system. The lumen diameter between the near and far wall of the lumen-intima interface and the averages of both the left and right common carotid arteries were calculated. Subsequently, the carotid cross-sectional wall area (CSWA) was calculated. Participants, who fasted overnight, provided eight-hour blood and urine samples to determine serum BDNF and metabolic markers, for example, hyperglycaemia (HbA1c) and gamma glutamyl transferase (GGT). Urinary albumin and creatinine levels were determined by means of a turbidimetric method with the use of a Unicel DXC 800 analyser from Beckman and Coulter (Germany) and expressed as a ratio between albumin and creatinine (ACR). BDNF median split x Gender interaction effects for structural ED justified stratification of BDNF into low and high (≤ / > 1.37 ng/ml) gender groups. Results and Conclusion - On average, male participants were overweight (BMI 25-30kg/m2) and abused more alcohol.21 African men revealed a vulnerable cardiometabolic profile with values exceeding cut–points (European Society of Hypertension). These men demonstrated increased acute and chronic glucose (HbA1c) levels indicating a pre-diabetic state; as well as a disturbed lipid profile with lower HdL and increased triglycerides. Overall BDNF levels were lower than reference ranges (6.97 – 42.6 ng/ml). The men revealed mean lower BDNF levels, ambulatory BP values exceeding guideline cut-points (ambulatory SBP > 130mmHg; DBP > 80mmHg) as well as a hypertensive state compared to their female counterparts. Pertaining to structural endothelial dysfunction, the mean ACR value in men exceeded normal laboratory values (< 3.5mg/mmol). The African women displayed an obese state with low grade inflammation (CRP, 12.27 ± 11.67mg/l). A single two-way ANCOVA interaction on main effects (BDNF median split x Gender) demonstrated significant interaction for CIMTf [F (1,164); 3.99, p=0.05] and cholesterol [F (1,164); 4.12, p=0.05]. Therefore, a median split approach was followed which stratified gender groups into lower (≤ 1.37 ng/ml) and higher BDNF levels (>1.37 ng/ml). The low BDNF men revealed higher cholesterol than the high BDNF group, independent of BMI and age. Only the low BDNF women indicated significantly higher values for structural vascular markers (p< 0.05) than the high BDNF female group. In conclusion, we accept our hypothesis, as hypertrophic remodelling of the carotid artery was associated with lower BDNF levels. This may imply attenuated or possibly down-regulated BDNF levels acting as a compensatory mechanism for the mean higher BP levels. In women, metabolic risk and hypertrophic remodelling were evident within higher circulating levels of BDNF, underpinning different underlying mechanisms for impaired neurotrophin health in men and women. Novel findings of BDNF revealed the impact of central neural regulation on the circulatory system, which may contribute to cardiometabolic risk in Africans. / MSc (Physiology), North-West University, Potchefstroom Campus, 2014

1. DIE DOEL VAN DIE NAVORSING: Die doel van hierdie navorsing was om die beste voorspellers van akademiese prestasie (dit is persentasie slaag) onder die kognitiewe, affektiewe en skoolveranderlikes vas te stel. Die teikengroep het uit standerd 10 leerlinge in Kwazulu skole bestaan. 2. DIE BEVINDINGE UIT DIE LITERATUUR: Om die voorgemelde doel te bereik 1s die oorsig van literatuur met verwysing na die vermelde onafhanklike veranderlikes gedoen, en die volgende gevolgtrekkings is bereik. 2.1 DIE VOORSPELLINGSWAARDES VAN DIE KOGNITIEWE VERANDERLIKES: Betreffende die voorspellingswaarde van die kognitiewe veranderlikes, het die literatuur daarop gewys dat die kognitiewe veranderlikes ongeveer 25 persent van die variansie in die akademiese prestasie verklaar. Belangrik in hierdie verband is die bevindinge deur Lavin (1967), Bloom (1979) en talle ander wat die voorspellingswaarde van intelligensie en aanleg ondersoek het. Die ander belangrike bevinding, in verband met intelligensie as voorspeller van akademiese prestasie, is dat die voorspellingswaarde van intelligensie daal as die leerlinge die hoer klasse bereik. Met ander woorde, intelligensie is volgens die literatuur 'n goeie voorspeller van akademiese prestasie in die primêre klasse. Sowel Lavin (1967) as Jensen (1980) het hierdie bewering gemaak. Die voorspellingswaarde van vorige deur die literatuur te bestudeer. literatuur daarop gewys dat voorspeller van akademiese prestasie is. Wat aanleg as voorspeller van akademiese prestasie betref, wys die literatuur daarop dat variansie wat grater as 25 persent in akademiese prestasie is, verklaar kan word op grond van aanleg. In hierdie verband kan die werke van Von Mollendorf (1978) en Vander Westhuizen (1987) genoem word. 2.2 DIE VOORSPELLINGSWAARDE VAN DIE AFFEKTIEWE VERANDERLIKES: Die affektiewe veranderlikes wat hier betrokke is, is persoonlikheid en beroepsbelangstelling. Betreffende die voorspellingswaarde van persoonlikheid is teenstrydige bevindinge in die literatuur verkry. Enersyds het ondersoeke wat in Amerika gedoen is, getoon dat die byvoeging van die persoonlikheidsveranderlikes by die kognitiewe veranderlikes in die voorspelling van akademiese prestasie 'n toename in die verklaring van variansie meebring. Andersyds het die navorsing wat in Suid-Afrika gedoen is, nie 'n duidelike beeld gegee nie. In die algemeen het die Suid-Afrikaanse ondersoeke daarop gewys dat die persoonlikheidsveranderlikes van min waarde is in die voorspelling van akademiese prestasie. Uit die studie van die literatuur, betreffende die voorspellingswaarde van beroepsbelangstelling, het dit geblyk dat beroepsbelangstelling van minder waarde is in die voorspelling van akademiese prestasie is as beroepsbelangstelling. 2.3 DIE VOORSPELLINGSWAARDE VAN DIE SKOOLVERANDERLIKES: Die skoolveranderlikes is in twee groepe verdeel: die fisiese wat skoolgrootte, klasgrootte, skoolligging en skool fasiliteite behels, en die sosiale wat die prinsipaal en die onderwysers behels. Die oorsig van die literatuur het daarop gewys dat die fisiese fasiliteite belangrik is vir opvoeding, maar hulle uitwerking op die kwaliteit van onderrig afhanklik is van hulle benutting deur die onderwysers. Byvoorbeeld, kleiner klasse het nie beduidend bygedra tot beter prestasie as die grater klasse nie. Die gevolgtrekking wat deur Bloom (1976) onder andere, bereik is, is dat die hele skoolomgewing belangrik is vir onderrig en n1e net die fisiese fasiliteite nie. Ongeveer 5 persent van die variansie in akademiese prestasie is volgens Bloom (1979) deur die skool verklaar. Dit was om hierdie rede dat die hele skool in hierdie ondersoek bestudeer is. Literatuur het ook deurgaans daarop gewys dat die verskille tussen die skole in akademiese prestasie verdwyn as intelligensie en die sosio-ekonomiese status gekontroleer is. 2.4 DIE INVLOED VAN GESLAG OP AKADEMIESE VOORSPELLING: Die literatuur het daarop gewys dat die twee geslagte se akademiese prestasie verskil. Die dogters, byvoorbeeld, presteer beter as seuns in toetse wat verbale aanleg verg, terwyl die seuns beter as dogters in wiskunde presteer: Die twee geslagte het geen verskille in intelligensie getoon nie. 3. DIE EMPIRIESE ONDERSOEK 3.1 DIE FORMULERING VAN HIPOTESES: 3. 1. 1 Hoof hipotese HOOF HIPOTESE 1 - Die aanleg veranderlikes is die beste voorspellers van standerd 10 akademiese prestasie in vergelyking met die affektiewe en die skoolveranderlikes. HOOF HIPOTESE 2 - Die affektiewe veranderlikes bring 'n toename mee in die variansie wat verklaarbaar is in akademiese prestasie as dit by die kognitiewe veranderlikes bygevoeg word. HOOF HIPOTESE 3 - Die skoolveranderlikes bring 'n toename mee in die variansie wat verklaarbaar is in akademiese prestasie as dit by die kognitiewe veranderlikes bygevoeg word. 3.1.2 Onderhipotese ONDERHIPOTESE 1 - Die gehalte van die skool het beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 3 - Die ligging van die skool het 'n beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 4 - Skoolsoort het 'n beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 5 - Geslag het 'n beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 6 - Daar bestaan steeds 'n verskil tussen koshuis en dagskole in akademiese prestasie selfs as aanleg gekontroleer is. ONDERHIPOTESE 7 - Daar bestaan steeds 'n verskil tussen stedelike en plattelandse skole in akademiese prestasie selfs as aanleg gekontroleer is. 3.2 DIE EMPIRIESE ONDERSOEK: Die empiriese ondersoek is ingestel om die geformuleerde hipoteses te toets. 3.2.1 Die teikengroep en die steekproef Die KwaZulu 1983 standerd 10 leerlinge is die teikengroep. Om die invloed van die ~kool op voorspelling vas te stel is 'n 10 persent ewekansige steekproef uit 170 sekondêre skole geneem (dit is 17 skole). As gevolg van die ewekansige steekproef is 'n monster van 1912 leerlinge gevorm. Die vermindering van die steekproef tot 1615 leerlinge in sommige analises, is 'n gevolg van onvolledige data van sekere leerlinge. 3.2.2 Die veranderlikes wat gebruik is 3.2.2.1 Die onafhanklike veranderlikes wat in hierdie ondersoek gebruik is, is die volgende: a. Aanlegtoetsresultate (AAT) b. Persoonlikheidsresultate (HSPQ) c. Belangstellingsresultate (VIQ) d. Skoolveranderlikheidstotaal (SVTOT) 3.2.2.2 Die afhanklike wat in hierdie ondersoek gebruik is, is die volgende: e. Standerd 10 geslaag persentasie. 3.2.2.3 Die modererende veranderlikes wat in hierdie studie bestudeer is, is die volgende: f. Die skoolgehalte; g. Die vakgroepe wat die leerlinge leer; h. Die ligging van die skool (stedelik of plattelands); i. Skooltipe (koshuis of dag); en j. Geslag. In hierdie ondersoek is gebruik gemaak van gestandardiseerde meetinstrumente om kognitiewe, en affektiewe veranderlikes te meet. Om die "skool" te meet is verskeie skoolveranderlikes eers geoperasionaliseer en daarna punte volgens rangorde deur die inspekteurs toegeken. Geslag is in hierdie ondersoek as modererende veranderlike gebruik om die invloed daarvan op voorspelling te bestudeer. Om die invloed van die skool as 'n modererende veranderlike te bestudeer is die steekproef verder verdeel volgens skoolgehalte, skoolligging en skooltipe. Die leerlinge was ook gegroepeer volgens die vakgroepe wat hulle geneem het (dit is algemeen, natuurwetenskap en handel). 4. STATISTIESE TEGNIEKE WAT IN HIERDIE NAVORSING GEBRUIK IS EN DIE RESULTATE VAN DIE ONDERSOEK: 4.1 MEERVOUDIGE REGRESSIE-ANALISE: Deurgaans toegepas is die meervoudige regressie-analise (BMDPIR program) om die beste voorspellers van akademiese prestasie te identifiseer. Die resultate van die analise het daarop gedui dat: i. die kognitiewe veranderlikes die beste voorspellers van akademiese prestasie is, in vergelyking met die affektiewe en die skoolveranderlikes; ii. die affektiewe veranderlikes van min voorspellingswaarde is; en iii. die skoolveranderlike 'n beduidende effek op voorspellings het. As gevolg van meervoudige regressie-analise is die kognitiewe en skoolveranderlikes gebruik as kontrole veranderlikes in die moderatorveranderlike studie. Die affektiewe veranderlikes is weggelaat weens hulle geringe bydrae tot R2 . 4.2 VARIANSIE ANALISE: Die meervoudige regressie-analise (BMDPIR) is ook gebruik by die moderatorondersoek. Die resultate van die ondersoek het daarop gedui dat: i. die skoolgehalte 'n beduidende invloed op die voorspelling van akademiese prestasie het; ii. die vakgroepe wat leerlinge leer 'n beduidende invloed op akademiese voorspelling het; iii. die skoolligging 'n beduidende invloed op akademiese voor spelling het; iv. die skooltipe 'n beduidende invloed op akademiese voorspelling het; v. geslag geen beduidende invloed op die voorspelling van algehele akademiese prestasie het nie; vi. die verskil in akademiese prestasie tussen die koshuisskole en dagskole bly steeds dieselfde selfs as aanleg gekontroleer is; en vii. die verskil in die akademiese prestasie van stedelike en plattelandse leerlinge steeds dieselfde bly selfs as aanleg gekontroleer is. 5. IMPLIKASIES VIR VERDERE ONDHRSOEK: In hierdie studie is gevind dat aanleg 'n goeie voorspeller van akademiese prestasie in goeie skole is, maar nie in swak skole nie. 'n Geldigheidsstudie is nodig om swak voorspelbaarheid in swak skole vas te stel. Sulke geldigheidstudies moet die sistematiese veranderlikes ook bestudeer sodat hulle invloed op R2 verklaar kan word. In hierdie studie is ook gevind dat die plattelandse skole akademies beter as stedelike skole presteer. Die bevinding is teenstrydig met die bevindinge van die vorige navorsers. 'n Verdere studie is dus ook nodig om die bevindinge van hierdie studie te bevestig of te verwerp. Die moontlikheid bestaan dat hierdie bevinding die invloed van die onrus wat gedurende daardie jare plaasgevind het, weerspieël. Verdere navorsing is ook nodig om die invloed van die groepvakke op akademiese prestasie te bevestig en o.a. die geldigheid van die resultate van hierdie navorsing te toets. Verdere navorsing is nodig om die waarde van die insluiting van 'n toets in moedertaal in die AAT battery vir voorspellings van akademiese prestasie vas te stel. Die resultate van hierdie studie (kyk tabel 6 • 2 ) het getoon dat die AAT die swakste met Zulutaal korreleer. 'n Toets in moedertaal blyk dus nodig te wees. 6. OPVOEDKUNDIGE IMPLIKASIE: Die kruisvalidasie van die beste stelveranderlikes het daarop gewys dat dit goed by goeie skole kan voorspel en nie by swak skole nie. Om al die skole se akademiese prestasie te verbeter, word dit aanbeveel dat die toetse aan die begin van die jaar toegepas moet word en dat die nuwe snitpunte (kyk paragraaf 6.7) by die verwagtingstabel gebruik moet word. Die vroegtydige beskikbaarheid van die toetsresultate kan help om leerlinge en die onderwysers te motiveer om beter te presteer. / Thesis (MEd)--PU vir CHO, 1989

1. DIE DOEL VAN DIE NAVORSING: Die doel van hierdie navorsing was om die beste voorspellers van akademiese prestasie (dit is persentasie slaag) onder die kognitiewe, affektiewe en skoolveranderlikes vas te stel. Die teikengroep het uit standerd 10 leerlinge in Kwazulu skole bestaan. 2. DIE BEVINDINGE UIT DIE LITERATUUR: Om die voorgemelde doel te bereik 1s die oorsig van literatuur met verwysing na die vermelde onafhanklike veranderlikes gedoen, en die volgende gevolgtrekkings is bereik. 2.1 DIE VOORSPELLINGSWAARDES VAN DIE KOGNITIEWE VERANDERLIKES: Betreffende die voorspellingswaarde van die kognitiewe veranderlikes, het die literatuur daarop gewys dat die kognitiewe veranderlikes ongeveer 25 persent van die variansie in die akademiese prestasie verklaar. Belangrik in hierdie verband is die bevindinge deur Lavin (1967), Bloom (1979) en talle ander wat die voorspellingswaarde van intelligensie en aanleg ondersoek het. Die ander belangrike bevinding, in verband met intelligensie as voorspeller van akademiese prestasie, is dat die voorspellingswaarde van intelligensie daal as die leerlinge die hoer klasse bereik. Met ander woorde, intelligensie is volgens die literatuur 'n goeie voorspeller van akademiese prestasie in die primêre klasse. Sowel Lavin (1967) as Jensen (1980) het hierdie bewering gemaak. Die voorspellingswaarde van vorige deur die literatuur te bestudeer. literatuur daarop gewys dat voorspeller van akademiese prestasie is. Wat aanleg as voorspeller van akademiese prestasie betref, wys die literatuur daarop dat variansie wat grater as 25 persent in akademiese prestasie is, verklaar kan word op grond van aanleg. In hierdie verband kan die werke van Von Mollendorf (1978) en Vander Westhuizen (1987) genoem word. 2.2 DIE VOORSPELLINGSWAARDE VAN DIE AFFEKTIEWE VERANDERLIKES: Die affektiewe veranderlikes wat hier betrokke is, is persoonlikheid en beroepsbelangstelling. Betreffende die voorspellingswaarde van persoonlikheid is teenstrydige bevindinge in die literatuur verkry. Enersyds het ondersoeke wat in Amerika gedoen is, getoon dat die byvoeging van die persoonlikheidsveranderlikes by die kognitiewe veranderlikes in die voorspelling van akademiese prestasie 'n toename in die verklaring van variansie meebring. Andersyds het die navorsing wat in Suid-Afrika gedoen is, nie 'n duidelike beeld gegee nie. In die algemeen het die Suid-Afrikaanse ondersoeke daarop gewys dat die persoonlikheidsveranderlikes van min waarde is in die voorspelling van akademiese prestasie. Uit die studie van die literatuur, betreffende die voorspellingswaarde van beroepsbelangstelling, het dit geblyk dat beroepsbelangstelling van minder waarde is in die voorspelling van akademiese prestasie is as beroepsbelangstelling. 2.3 DIE VOORSPELLINGSWAARDE VAN DIE SKOOLVERANDERLIKES: Die skoolveranderlikes is in twee groepe verdeel: die fisiese wat skoolgrootte, klasgrootte, skoolligging en skool fasiliteite behels, en die sosiale wat die prinsipaal en die onderwysers behels. Die oorsig van die literatuur het daarop gewys dat die fisiese fasiliteite belangrik is vir opvoeding, maar hulle uitwerking op die kwaliteit van onderrig afhanklik is van hulle benutting deur die onderwysers. Byvoorbeeld, kleiner klasse het nie beduidend bygedra tot beter prestasie as die grater klasse nie. Die gevolgtrekking wat deur Bloom (1976) onder andere, bereik is, is dat die hele skoolomgewing belangrik is vir onderrig en n1e net die fisiese fasiliteite nie. Ongeveer 5 persent van die variansie in akademiese prestasie is volgens Bloom (1979) deur die skool verklaar. Dit was om hierdie rede dat die hele skool in hierdie ondersoek bestudeer is. Literatuur het ook deurgaans daarop gewys dat die verskille tussen die skole in akademiese prestasie verdwyn as intelligensie en die sosio-ekonomiese status gekontroleer is. 2.4 DIE INVLOED VAN GESLAG OP AKADEMIESE VOORSPELLING: Die literatuur het daarop gewys dat die twee geslagte se akademiese prestasie verskil. Die dogters, byvoorbeeld, presteer beter as seuns in toetse wat verbale aanleg verg, terwyl die seuns beter as dogters in wiskunde presteer: Die twee geslagte het geen verskille in intelligensie getoon nie. 3. DIE EMPIRIESE ONDERSOEK 3.1 DIE FORMULERING VAN HIPOTESES: 3. 1. 1 Hoof hipotese HOOF HIPOTESE 1 - Die aanleg veranderlikes is die beste voorspellers van standerd 10 akademiese prestasie in vergelyking met die affektiewe en die skoolveranderlikes. HOOF HIPOTESE 2 - Die affektiewe veranderlikes bring 'n toename mee in die variansie wat verklaarbaar is in akademiese prestasie as dit by die kognitiewe veranderlikes bygevoeg word. HOOF HIPOTESE 3 - Die skoolveranderlikes bring 'n toename mee in die variansie wat verklaarbaar is in akademiese prestasie as dit by die kognitiewe veranderlikes bygevoeg word. 3.1.2 Onderhipotese ONDERHIPOTESE 1 - Die gehalte van die skool het beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 3 - Die ligging van die skool het 'n beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 4 - Skoolsoort het 'n beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 5 - Geslag het 'n beduidende invloed op die voorspelling van akademiese prestasie in standerd 10. ONDERHIPOTESE 6 - Daar bestaan steeds 'n verskil tussen koshuis en dagskole in akademiese prestasie selfs as aanleg gekontroleer is. ONDERHIPOTESE 7 - Daar bestaan steeds 'n verskil tussen stedelike en plattelandse skole in akademiese prestasie selfs as aanleg gekontroleer is. 3.2 DIE EMPIRIESE ONDERSOEK: Die empiriese ondersoek is ingestel om die geformuleerde hipoteses te toets. 3.2.1 Die teikengroep en die steekproef Die KwaZulu 1983 standerd 10 leerlinge is die teikengroep. Om die invloed van die ~kool op voorspelling vas te stel is 'n 10 persent ewekansige steekproef uit 170 sekondêre skole geneem (dit is 17 skole). As gevolg van die ewekansige steekproef is 'n monster van 1912 leerlinge gevorm. Die vermindering van die steekproef tot 1615 leerlinge in sommige analises, is 'n gevolg van onvolledige data van sekere leerlinge. 3.2.2 Die veranderlikes wat gebruik is 3.2.2.1 Die onafhanklike veranderlikes wat in hierdie ondersoek gebruik is, is die volgende: a. Aanlegtoetsresultate (AAT) b. Persoonlikheidsresultate (HSPQ) c. Belangstellingsresultate (VIQ) d. Skoolveranderlikheidstotaal (SVTOT) 3.2.2.2 Die afhanklike wat in hierdie ondersoek gebruik is, is die volgende: e. Standerd 10 geslaag persentasie. 3.2.2.3 Die modererende veranderlikes wat in hierdie studie bestudeer is, is die volgende: f. Die skoolgehalte; g. Die vakgroepe wat die leerlinge leer; h. Die ligging van die skool (stedelik of plattelands); i. Skooltipe (koshuis of dag); en j. Geslag. In hierdie ondersoek is gebruik gemaak van gestandardiseerde meetinstrumente om kognitiewe, en affektiewe veranderlikes te meet. Om die "skool" te meet is verskeie skoolveranderlikes eers geoperasionaliseer en daarna punte volgens rangorde deur die inspekteurs toegeken. Geslag is in hierdie ondersoek as modererende veranderlike gebruik om die invloed daarvan op voorspelling te bestudeer. Om die invloed van die skool as 'n modererende veranderlike te bestudeer is die steekproef verder verdeel volgens skoolgehalte, skoolligging en skooltipe. Die leerlinge was ook gegroepeer volgens die vakgroepe wat hulle geneem het (dit is algemeen, natuurwetenskap en handel). 4. STATISTIESE TEGNIEKE WAT IN HIERDIE NAVORSING GEBRUIK IS EN DIE RESULTATE VAN DIE ONDERSOEK: 4.1 MEERVOUDIGE REGRESSIE-ANALISE: Deurgaans toegepas is die meervoudige regressie-analise (BMDPIR program) om die beste voorspellers van akademiese prestasie te identifiseer. Die resultate van die analise het daarop gedui dat: i. die kognitiewe veranderlikes die beste voorspellers van akademiese prestasie is, in vergelyking met die affektiewe en die skoolveranderlikes; ii. die affektiewe veranderlikes van min voorspellingswaarde is; en iii. die skoolveranderlike 'n beduidende effek op voorspellings het. As gevolg van meervoudige regressie-analise is die kognitiewe en skoolveranderlikes gebruik as kontrole veranderlikes in die moderatorveranderlike studie. Die affektiewe veranderlikes is weggelaat weens hulle geringe bydrae tot R2 . 4.2 VARIANSIE ANALISE: Die meervoudige regressie-analise (BMDPIR) is ook gebruik by die moderatorondersoek. Die resultate van die ondersoek het daarop gedui dat: i. die skoolgehalte 'n beduidende invloed op die voorspelling van akademiese prestasie het; ii. die vakgroepe wat leerlinge leer 'n beduidende invloed op akademiese voorspelling het; iii. die skoolligging 'n beduidende invloed op akademiese voor spelling het; iv. die skooltipe 'n beduidende invloed op akademiese voorspelling het; v. geslag geen beduidende invloed op die voorspelling van algehele akademiese prestasie het nie; vi. die verskil in akademiese prestasie tussen die koshuisskole en dagskole bly steeds dieselfde selfs as aanleg gekontroleer is; en vii. die verskil in die akademiese prestasie van stedelike en plattelandse leerlinge steeds dieselfde bly selfs as aanleg gekontroleer is. 5. IMPLIKASIES VIR VERDERE ONDHRSOEK: In hierdie studie is gevind dat aanleg 'n goeie voorspeller van akademiese prestasie in goeie skole is, maar nie in swak skole nie. 'n Geldigheidsstudie is nodig om swak voorspelbaarheid in swak skole vas te stel. Sulke geldigheidstudies moet die sistematiese veranderlikes ook bestudeer sodat hulle invloed op R2 verklaar kan word. In hierdie studie is ook gevind dat die plattelandse skole akademies beter as stedelike skole presteer. Die bevinding is teenstrydig met die bevindinge van die vorige navorsers. 'n Verdere studie is dus ook nodig om die bevindinge van hierdie studie te bevestig of te verwerp. Die moontlikheid bestaan dat hierdie bevinding die invloed van die onrus wat gedurende daardie jare plaasgevind het, weerspieël. Verdere navorsing is ook nodig om die invloed van die groepvakke op akademiese prestasie te bevestig en o.a. die geldigheid van die resultate van hierdie navorsing te toets. Verdere navorsing is nodig om die waarde van die insluiting van 'n toets in moedertaal in die AAT battery vir voorspellings van akademiese prestasie vas te stel. Die resultate van hierdie studie (kyk tabel 6 • 2 ) het getoon dat die AAT die swakste met Zulutaal korreleer. 'n Toets in moedertaal blyk dus nodig te wees. 6. OPVOEDKUNDIGE IMPLIKASIE: Die kruisvalidasie van die beste stelveranderlikes het daarop gewys dat dit goed by goeie skole kan voorspel en nie by swak skole nie. Om al die skole se akademiese prestasie te verbeter, word dit aanbeveel dat die toetse aan die begin van die jaar toegepas moet word en dat die nuwe snitpunte (kyk paragraaf 6.7) by die verwagtingstabel gebruik moet word. Die vroegtydige beskikbaarheid van die toetsresultate kan help om leerlinge en die onderwysers te motiveer om beter te presteer. / Thesis (MEd)--PU vir CHO, 1989

The combined study of consumer ethnocentrism and lifestyle is a unique approach that marketers can use to determine consumer buying behaviour and to refine market segmentation. In particular, marketers need to study consumer buying behaviour and examine the main influences regarding what, where, when and how consumers buy, as this knowledge will allow marketers to predict how consumers make their purchase decisions and how they will respond to various marketing strategies. A better understanding of the buying behaviour of consumers in a prospective market segment will help marketers to devise more effective marketing strategies for targeting consumers in the particular market segment they wish to pursue, and therefore, market segmentation is an extremely useful marketing tool. The Black Diamond consumer segment in South Africa has been receiving heightened attention from marketers recently due to the increasing purchasing power of this segment, and therefore it is necessary for marketers to gain a more profound understanding of these consumers so that they will be able to address Black Diamonds' specific needs, wants and preferences. This will assist marketers to devise marketing strategies that target the Black Diamond segment more effectively. The primary objective of this study was to determine consumer ethnocentrism and lifestyle among Black Diamonds in Sandton. This objective was addressed by using an adapted version of the Consumer Ethnocentrism Scale (CETSCALE) to measure the level of consumer ethnocentrism among Black Diamonds and by determining the lifestyle of this group by using the activities, interests and opinions (AIO) approach to measure the levels of six lifestyle dimensions, namely fashion consciousness, self–consciousness, health consciousness, homemaking, community orientation, and cost–consciousness. Based on literature consulted, an interviewer–administered questionnaire was developed and distributed to Black Diamond consumers by five fieldworkers in the Sandton area, in the city of Johannesburg, in the Gauteng province. Convenience and judgement sampling (non–probability sampling methods) were used and a total of 200 respondents participated in this study. The validity and reliability of the adapted version of the CETSCALE used in the questionnaire to measure the level of consumer ethnocentrism of respondents, as well as the six batteries of statements used to measure the levels of the respective lifestyle dimensions, were determined by means of factor analysis. The results indicated that consumer ethnocentrism is moderately high among respondents. Furthermore, moderately high levels of fashion consciousness, self–consciousness, health consciousness and cost–consciousness were found among respondents. Low levels of interest were established in homemaking activities and community orientation. It was found that various underlying relationships exist between consumer ethnocentrism and lifestyle dimensions of respondents, specifically between the lifestyle dimensions of health consciousness, homemaking and community orientation. It was further found that significant differences exist between the perceptions of respondents toward consumer ethnocentrism and the lifestyle dimensions in terms of their diverse age categories. It is recommended that marketers should stress product attributes, benefits, and superior aspects of the product by underplaying the product's country of origin, in light of the high level of consumer ethnocentrism prevalent among Black Diamonds. Furthermore, it is recommended that marketers and organisations should adapt and modify their current marketing strategies in order to appeal to the various lifestyle dimensions of Black Diamonds, specifically focussing on the higher levels of fashion consciousness, self–consciousness, health consciousness and cost–consciousness among Black Diamonds, whilst underplaying homemaking and community orientation. By considering consumer ethnocentrism and lifestyle, and realising that these factors affect the buying behaviour of Black Diamonds, marketers will be able to develop effective marketing strategies that will allow them to target the Black Diamond consumer segment more effectively and efficiently. Recommendations for future research include examining consumer ethnocentrism and lifestyle among Black Diamonds in a wider geographic area, drawing a larger sample size from the target population, and being more selective with regard to the respondents included in the study, in order to ensure that the most appropriate respondents do indeed form part of population under scrutiny. Furthermore, in order to improve the validity of the study, future research could be conducted by incorporating more qualitative forms of research such as focus groups and interviews. In addition to the six lifestyle dimensions that were measured in this study, a wider range of lifestyle dimensions can be measured in future research. / Thesis (M.Com. (Marketing Management))--North-West University, Potchefstroom Campus, 2012.