[Truncated abstract] Broadly, research literature on the physiological aspects of water polo game play is limited, but particularly so in the women's game. Moreover, significant changes to game rules in recent years are likely to have had an impact on the game demands. Therefore, this research project sought to investigate the physiological characteristics of contemporary elite female water polo players and the demands of match play. Overall, the five studies comprising this thesis aimed to improve the practical knowledge of coaches and sport scientists concerning the training and monitoring of players. Study one (Chapter 3) compared two water polo-specific field tests of aerobic and/or match fitness (MSST, multistage shuttle swim test; and WIST, water polo intermittent shuttle test) with a traditional incremental swimming test to exhaustion (IST, 5 x 200 m). Prior to this study, the physiological responses to the MSST and WIST were not well understood. Additionally, the degree of association between these two tests was unknown. Therefore, 14 Australian National Women's Water Polo Squad players performed the MSST and WIST, and 13 players from a National Water Polo League club performed the MSST, WIST and IST, on separate occasions. Peak heart rate, blood lactate and ratings of perceived exertion were obtained for all tests. Expired air was collected post test for the National League players. The results showed that the National Squad players performed significantly better in the MSST (636 ± 114 vs. 437 ± 118 m, p < 0.001) and WIST (270 ± 117 vs. 115 ± 57 m, p < 0.001) than the National League players. ... Absolute decrement yielded TE of 0.55 s (-0.42-0.81), CV of 26.0% (19.3-41.0) and ICC of -0.002 (-0.44-0.44). Relative (%) decrement yielded TE of 1.6% (1.2-2.3), CV of 27.2% (20.1-42.9) and ICC of -0.02 (-0.46-0.42). Results indicate that total time was a reliable measure, whilst decrement was not. Similar to land-based RSA tests, total time should be the criterion measure of performance in the RST. The RST can form part of a specific battery of field tests for water polo, and can also be used as a conditioning tool. The final study (Chapter 7) was a nutritional-intervention study. Based on the time-motion data from study three, a 59-min match simulation test (MST) was designed to mimic the activity profiles and physical demands of water polo match play. Using a randomized cross-over double-blind design, 12 Australian National Women's Water Polo Squad players ingested 0.3 g·kg-1 of NaHCO3 or placebo, 90 min before performing the MST, which included 56 x 10-m maximal-sprint swims as the performance measure. Although pre-exercise ingestion of NaHCO3 was effective in enhancing extracellular pH and bicarbonate levels, the percentage difference in mean sprint times between trials showed no substantial effects of NaHCO3 (0.4; ±0.9%, effect size = 0.09; ±0.23, p = 0.51). The results suggest that elite water polo players should not expect enhancement in intermittent-sprint performance from NaHCO3 supplementation. These findings are contrary to previous NaHCO3 studies on simulated team-sport performance, but this investigation is unique in that it examined highly-trained athletes performing sport-specific tasks. In conclusion, the findings of this thesis add to the existing literature on the applied physiology of women's water polo. It is hoped that the knowledge gained from these findings will lead to more appropriate conditioning, testing and selection outcomes.

Thesis (MPhil )--Stellenbosch University, 2011. / ENGLISH ABSTRACT: An increasing number of studies indicate that South African learners' literacy levels are deplorably low. According to one international study, the Progress in International Literacy Study (PIRLS), conducted in 2006, South African grade 4 learners' literacy levels are the lowest of the 40 countries that participated in the study. The results of the first Annual National Assessment (ANA), conducted in 2011, show that the average literacy performance of grade 3 learners in South Africa lies at 35%. Even though numerous reasons can be presented for these low literacy levels - amongst others, large classes, insufficient teacher training, insufficient educational practices (especially the fact that so little time is spent on reading instruction), and a lack of teaching material - the blame is often cast on the insufficient language proficiency of South African learners. South African learners often receive education in a language which is not their first language. A large number of learners only receive education in their first language for the first three years of their school career and thereafter English usually becomes the language of learning and teaching. It is, however, not only those learners who receive education in their second language who have low literacy skills. Learners who receive education in their first language also encounter problems. The aim of this study was to determine whether a reading intervention programme, designed on the basis of the most recent research on reading, could improve the reading comprehension skills of grade 8 learners in their first language Afrikaans and whether these skills could be transferred to their second language English. The study showed that there was a significant improvement in the participating learners' reading comprehension skills in their first language Afrikaans, as well as in their second language English, even though the reading intervention was only offered in Afrikaans. According to the results of this study, it seems that reading comprehension skills which are acquired in the first language can indeed be transferred to a second language. The implications of these findings for first and second language literacy development are discussed in the final chapter of the thesis. / AFRIKAANSE OPSOMMING: 'n Toenemende aantal studies dui daarop dat Suid-Afrikaanse leerders se geletterdheidsvlakke kommerwekkend laag is. Volgens een internasionale studie, die Progress in International Literacy Study (PIRLS), wat in 2006 gedoen is, is Suid-Afrikaanse graad 4-leerders se geletterdheidsvlakke die laagste van die 40 lande wat deelgeneem het. Die resultate van die eerste Annual National Assessment (ANA) wat in 2011 gedoen is, wys dat graad 3-leerders in Suid-Afrika se gemiddelde prestasie vir geletterdheid slegs 35% is. Hoewel talle redes vir hierdie lae geletterdheidsvlakke aangebied kan word - waaronder groot klasse, onvoldoende onderwyseropleiding, onvoldoende onderrigpraktyke (veral dat daar te min tyd aan leesonderrig bestee word) en 'n gebrek aan onderrigmateriaal - word die blaam dikwels geplaas op die onvoldoende taalvaardighede van Suid-Afrikaanse leerders. Suid-Afrikaanse leerders gaan dikwels skool in 'n taal wat nie hul eerste taal is nie. Talle leerders ontvang slegs vir die eerste drie jaar van hul skoolloopbaan onderrig in hul eerste taal en daarna word Engels gewoonlik die taal van leer en onderrig. Dit is egter nie net die leerders wat in hul tweede taal onderrig ontvang, wat lae geletterdheidsvlakke het nie. Leerders wat in hul eerste taal onderrig ontvang, ondervind ook probleme. Die doel van hierdie studie was om vas te stel of 'n leesintervensieprogram, wat geskoei is op die nuutste navorsing oor lees, die leesbegripsvaardighede van graad 8-leerders in hul eerste taal Afrikaans kan verbeter en of hierdie vaardighede oorgedra kan word op hul tweede taal Engels. Die studie het aangedui dat daar 'n beduidende verbetering in die leerders se leesbegripsvaardighede in hul eerste taal Afrikaans sowel as hul tweede taal Engels was, alhoewel die leesintervensie slegs in Afrikaans aangebied is. Volgens die resultate van die studie wil dit voorkom asof leesbegripsvaardighede wat in die eerste taal verwerf word, oorgedra kan word na 'n tweede taal. Die implikasies van hierdie bevindinge vir die ontwikkeling van geletterdheid in 'n eerste en tweede taal, word in die finale hoofstuk van die tesis bespreek.

Thesis (MPhil (General Linguistics))--University of Stellenbosch, 2009. / ENGLISH ABSTRACT: The financial sector of South Africa is increasingly under pressure to ensure that the language used in all communication is aligned with international best practice and, furthermore, that the correct business terminology is applied. Standards of language proficiency and usage have, however, deteriorated over the past few years. This appears to be due mainly to lack of good language education at school level. In Nedbank, specifically, the language used by employees in written external communication is not always on par as is evident from the documentation that Nedbank Editorial and Language Services (Nels), the “language custodian” of the bank, has to edit and translate. Nels decided six years ago that, instead of rewriting all these documents, which is not timeor cost-efficient, to rather give business-writing training across the bank to enable Nedbank employees to increase their general writing proficiency of English. This study aims to establish whether there are discrepancies in the type of error made in English as used by Coloured Afrikaans mother tongue speakers and White Afrikaans mother tongue speakers in order to determine how to customise the business-writing training materials to the benefit of each cultural grouping in Nedbank. / AFRIKAANSE OPSOMMING: Die finansiële sektor in Suid-Afrika is toenemend onder druk om te verseker dat die taal wat in alle kommunikasie gebruik word in ooreenstemming is met internasionale “beste praktyk”, en verder dat die korrekte besigheidsterminologie gebruik word. Taalvaardigheids- en taalgebruiksvlakke het egter oor die afgelope aantal jare verswak, waarskynlik a.g.v. onvoldoende taalonderrig op skool. In Nedbank is die taalgebruik van werknemers in geskrewe eksterne kommunikasie nie altyd van ’n aanvaarbare standaard nie, soos duidelik blyk uit die dokumentasie wat Nedbank Editorial and Language Services (Nels), die bank se “taalbewaarder”, moet redigeer en vertaal. Nels het ses jaar gelede besluit om besigheidskryfkursusse vir die hele groep aan te bied, eerder as om al die eksterne kommunikasie oor te skryf, wat nie tyd- en koste-effektief is nie. Sodoende kan werknemers hulle algemene skryfvaardighede in Engels verbeter. Hierdie studie probeer vasstel of daar moontlike verskille is in die soort foute wat in Engels deur gekleurde Afrikaans-moedertaalsprekers en wit Afrikaans-moedertaalsprekers gemaak word, in ‘n poging om doeltreffende opleidingsmateriaal te ontwikkel vir elke kulturele groepering in Nedbank.

Thesis (MComm)--Stellenbosch University, 2013. / ENGLISH ABSTRACT: The ability of organisations to be successful in the current global business environment will ultimately be dependent on their ability to be innovative. However, creativity and innovation will not take place spontaneously in any team setting and will be the result of meticulous planning and implementation efforts on the part of the team’s members. The current global business environment is characterised by constant change and this makes leadership more important than ever before as leaders are considered the drivers of change and ultimately responsible for organisational success. Leaders within organisational team settings have an essential role to fulfil in stimulating and facilitating innovative behaviour in their subordinates. The fact that some leaders manage to successfully stimulate and facilitate innovative behaviour in their subordinates, while others fail to do so, might well be contributed by some to a number of simplistic variables– but this is not the case. The fact that some leaders manage to successfully stimulate and facilitate innovative behaviour in their subordinates can be attributed to the fact that these leaders possess specific competencies based on different sets of knowledge, skills and attitudes. The innovation process consists of four distinct phases (idea generation, idea screening, feasibility and commercialisation) and innovative outcomes for a team will only result if team members successfully progress through each of these four phases. The reality, however, is that the innovation process itself is filled with challenges that will need to be overcome by team members if innovation is to flourish. Accordingly leaders should apply specific sets of knowledge, skills and attitudes during each of the phases in the innovation process to help guide subordinates successfully through the innovation process. It should hence be clear that being aware of the specific leadership competencies that will stimulate and facilitate innovative behaviour in subordinates will be of immense value to any organisation who wishes to act more innovatively. The primary purpose of this study was consequently to design a psychological measurement instrument that would provide a measure of the specific competencies leaders should possess to stimulate and facilitate innovative behaviour in subordinates. This instrument would enable management to customise training and development programmes to meet the specific needs of leaders and hence develop the necessary knowledge, skills and attitudes on their part. A pilot study was conducted with the experimental version of the ILQ to obtain information regarding the psychometric properties of the instrument. Results obtained from the pilot study provided evidence that the ILQ instrument possesses high levels of internal reliability and satisfactory levels of concurrent validity. It can therefore be claimed that the ILQ instrument would serve as a valuable diagnostic tool for organisations who wish to improve their innovative capabilities. / AFRIKAANSE OPSOMMING: Die mate waartoe organisasies suksesvol sal wees in die huidige globale besigheidsomgewing sal bepaal word deur hul vermoë om innoverend op te tree. Dit is belangrik om daarop te let dat kreatiwiteit en innovasie nie spontaan sal plaasvind binne ‘n spankonteks nie, maar eerder die resultaat sal wees van doelbewuste praktyke en gedrag deur spanlede. Die huidige globale besigheidsomgewing word gekenmerk deur konstante verandering en lei daartoe dat leierskap belangriker as ooit geag word vanweë die feit dat leiers beskou word as die dryfkrag vir verandering en verantwoordelik is vir organisasie sukses. Spanleiers in organisasies moet ‘n essensiële rol vervul met betrekking tot die stimulering en fasilitering van innoverende gedrag in hul ondergeskiktes. Die feit dat sommige leiers dit regkry om suksesvol innoverende gedrag in hul ondergeskiktes te stimuleer en te fasiliteer, terwyl ander leiers misluk om dit reg te kry, word deur sommige individue aan ‘n klein aantal eenvoudige veranderlikes toegeskryf – dit is egter nie die geval nie. Die feit dat sommige leiers dit regkry om suksesvol innoverende gedrag in hul ondergeskiktes te stimuleer en te fasiliteer, kan toegeskryf word aan die feit dat hierdie leiers oor sekere bevoegdhede beskik gebaseer op spesifieke stelle kennis, vaardighede en houdings. Die innovasieproses bestaan uit vier onderskeie fases (idee-generering, idee-evaluering, bepaling van uitvoerbaarheid en kommersialisering) en werkspanne sal slegs innoverende uitkomstes behaal indien hulle suksesvol vorder deur elkeen van hierdie vier fases. Die realiteit is egter dat die innovasieproses inherent gevul is met uitdagings wat oorkom sal moet word deur spanlede indien innovasie enigsins sal floreer in die spanne. Dit is dus noodsaaklik dat leiers ‘n spesifieke versameling kennis, vaardighede en houdings sal aanwend om die pogings van ondergeskiktes suksesvol te bestuur deur die verskeie fases van die innovasieproses. Om kennis te dra omtrent die spesifieke leierskap-bevoegdhede – gebaseer op kennis, vaardighede en houdings – wat innoverende gedrag in ondergeskiktes sal stimuleer en fasiliteer, sal van onskatbare waarde wees vir organisasies. Die doel van hierdie studie was gevolglik om ‘n meetinstrument te ontwerp wat die bevoegdhede sal meet waaroor leiers moet beskik indien hulle beoog om suksesvol innoverende gedrag in hul ondergeskiktes te stimuleer en te fasiliteer. ‘n Meetinstrument van hierdie aard sal organisasies en hul bestuur in staat stel om opleiding en ontwikkeling programme nommerpas te maak en sodoende spesifieke bevoegdhede in hul leiers te ontwikkel. ‘n Loodsstudie is vervolgens uitgevoer om inligting rakende die psigometriese eienskappe van die instrument te verkry. Die resultate het getoon dat die ILQ oor hoë vlakke van interne betroubaarheid beskik, asook bevredigende vlakke van samevallende geldigheid. Die aanspraak kan gevolglik gemaak word dat die ILQ as ‘n waardevolle diagnostiese instrument vir enige organisasie sal dien wat beoog om hul innoverende vermoë uit te brei.

This research study examines the relationship between conjunctive cohesion and relational coherence in students' narrative and expository compositions and writing quality (here defined in terms of teachers' ratings). Altogether 64 compositions were analysed using Halliday and Hasan's (1976) cohesion theory and Crombie's (1985) set of interpropositional relations. The results of the study show that both conjunctive cohesion density and relational coherence, as defined by the density of contiguous functional relations, affect perceptions of writing quality. Writers of low-rated narrative and low-rated expository compositions not only used a more limited range of conjunctives but their compositions manifested less cohesion density and contiguous relation density than writers of high-rated narrative and expository compositions did. / Linguistics and Modern Languages / M. A. (Applied Linguistics)

Increasing involvement with students at the University of Namibia has indicated their overall difficulty with comprehending and recalling information from oral content lectures. It has also been observed that in general very little attention is given to the development of listening skills in L2 ESP and EAP courses. For this study, I conducted a quasi-experiment to determine whether the recognition and interpretation of discourse markers will enhance students' listening comprehension in academic lectures. Students were tested to determine their comprehension of content information in a video-taped lecture. Qualitative data were collected by means of a questionnaire. After an intervention period of eight weeks, where the experimental group received strategy training in the recognition and interpretation of discourse markers in spoken texts, both groups were again tested. Their results were statistically compared. I also looked at related findings of other researchers. Finally, aspects for possible future research will also be considered. / English Studies / MA - (Specialisation in TESOL)

Continuous change and competition in the working environment necessitate increased efficiency and productivity which require different and enhanced skills and abilities. It is therefore important that the right people with the right skills are selected and employees are developed to enable them to meet the organisational and national demands of the future. This dissertation investigates the relationship between learning potential, English language proficiency and work-related training test results to establish why some production employees perform better on work-related training test results than others. The results indicate that there is no significant relationship between the work-related training test results and either learning potential or English language proficiency. There is, however, a significant correlation between learning potential and English language proficiency. It might be worthwhile exploring the availability and adequacy of assessors as well as the motivational level of the production employees as factors that influence the progress made with work-related training test results. / Industrial and Organisational Psychology / MCOM (Industrial Psychology)

Legal and scientific imperatives necessitate the validation of a psychometric battery before using it for the purposes of personnel selection and decision- making. The aim of this investigation is to validate a selection battery, i.e. the Ability, Processing of Information and Learning (APIL) Battery and Raven's Advanced Progressive Matrices (APM), used in selecting university bridging - course students. The empirical study is informed by a literature review focussing on the legal and scientific parameters of psychometrics within selection, the conceptualisation of intelligence and its relationship to academic performance. Hypotheses are posed regarding the predictive power of the selection battery and the effect of biographical factors on academic performance. Results indicate that the APU. Battery apd Raven's APM are both valid predictors of academic performance, ·although the former appears more effective. This investigation emphasises the influence of moderating factors, i.e. factors other than cognitive ability, on academic performance. / Industrial and Organisational Psychology / M. Adm. (Industrial and Organisational Psychology)

The aim of this investigation was to determine whether there is a significant difference in the academic achievement of sixth grade Science students when teaching styles are matched to their learning styles. The research problem is encompassed in the following question: "Is there a relationship between matching teaching and learning styles and the academic success in Science?" A quantitative approach was undertaken, specifically, the pretest-posttest control group experimental design. The population comprised of sixth grade students selected according to a non-probability sampling method of convenience. The sample comprised of two class units randomly selected. The dependent sample t-test inferential statistic was used to analyze the data collected. The results indicated a statistically significant difference between the pretest and posttest scores of the experimental group. The conclusion reached is that matching teaching styles to learning styles improves the academic success of sixth grade learners in Science. / Educational Studies / M.Ed. (Educational Psychology)

Recent political and social changes in South Africa have created the need for culture-fair tests for cross-cultural measurement of cognitive ability. This need has been highlighted by the professional, legal and research communities. For cognitive assessment, dynamic assessment is more equitable because it involves a test-train-retest procedure, which shows what performance levels individuals are able to attain when relevant training is provided. Following Binet’s thinking, dynamic assessment aims to identify those individuals who are likely to benefit from additional training. The theoretical basis for learning potential assessment is Vygotsky’s concept of the zone of proximal development. This thesis describes the development, standardisation and evaluation of the Learning Potential Computerised Adaptive Test (LPCAT), for measuring learning potential in the culturally diverse South African population by means of nonverbal figural items. In accordance with Vygotsky’s view, learning potential is defined as a combination of present performance and the extent to which performance is increased after relevant training. This definition allows for comparison of individuals at different levels of initial performance and with different measures of improvement. Computerised adaptive testing based on item response theory, as used in the LPCAT, is uniquely suitable for increasing both measurement accuracy and testing efficiency of dynamic testing, two aspects that have been identified as problematic. The LPCAT pretest and the post-test are two separate adaptive tests, hence eliminating the role of memory in post-test performance. Several multicultural groups were used for item analysis and test validation. The results support the LPCAT as a culture-fair measure of learning potential in the nonverbal general reasoning domain. For examinees with a wide range of ability levels, LPCAT scores correlate strongly with academic performance. For African examinees, poor proficiency in English (the language of teaching) hampers academic performance. The LPCAT ensures the equitable measurement of learning potential, independent of language proficiency and prior scholastic learning and can be used to help select candidates for further training or developmental opportunities. / Psychology / D. Litt. et Phil. (Psychology)