M.Ed. / The writers of the HSRC report on the provision of education in the RSA emphasize the necessity of the introduction of a selection programme which ought to be implemented by every educational authority as standard practice. This study forms part of a team research project of the BUE which deals with some of the factors which may have an influence on the academic achievement of degree-course first-year students in the Rand Afrikaans University. The aim of this study is to determine whether there is a connection between the psychometric variable stress and the academic achievement of degree-course first-year teacher trainees and possibly to make an indirect contribution to the development of a selection mechanism for teacher trainees in the RAU should such a mechanism become a reality. At the hand of a study of literature on the subject the psychometric concept of stress was scrutinised specifically with refence to the definition and measuring of the concept and the connection between stress and academic performance. The most important finding was that there is a slight inverse connection between stress and academic achievement - that is low stress is inclined to go hand in hand with better performance and high stress with poorer performance. In the course of the empirical investigation the post hoc approach was followed and use was made of the BUE data bank to supply the necessary information regarding the 1986 and 1987 degree-course first-year students. The statistical technique was used to determine which differences between successful and unsuccessful student groups may be said to be significant, with reference to the various factors of the IPAT stress scale. Although there were no significant differences in respect of the factors, the following did emerge: the stress levels of all the students in the research group may be said to vary between low and average. This points to a normal society. In respect of total stress counts, the following was found: B, A. (Ed, ) students: There are no statistically significant differences between successful and unsuccessful students in respect of conscious, unconscious or total stress. B. Com, (Ed. ) students: The difference between the successful and the unsuccessful student's experience of unconscious stress was found to be statistically significant, respect of conscious or regarded as significant stress was found to be statistically significant but the differences on the total stress cannot be be regarded as significant. B.Sc.(Ed.) students: The difference in successful and unsuccessful students experience of total stress was found to be statistically significant.

M.A. / Because of the high incidence of hypertension amongst South African blacks, many hypothesis have been forwarded to account for the relative higher index of hypertension amongst South African blacks when compared to whites. Because of the virtue lack of endemic proportions of hypertension in South African blacks at the beginning of this century, the often - quoted genetic hypothesis that hypertension is genetically determined would seem not to hold for South African situation. However, this was not yet tested as one of the risk factors or precursors to hypertension, namely the higher indices of cardiovascular reactivity had not been compared in the South African group between white and black subjects. This study investigated the hypothesis that the offspring of black hypertensive parents would show greater cardiovascular reactivity than those of black non-hypertensive parents, and also show greater cardiovascular reactivity than the children of white hypertensive parents as well as the children of white non-hypertensive parents. These hypotheses were partially supported. As expected the children of black hypertensives did show greater indices of cardiovascular reactivity when compared to both children of white hypertensives and the children of black non-hypertensives. An interesting finding however, was that the children of white hypertensives had shown greater indices of the psychological construct of state anxiety than the children of black hypertensive and black non-hypertensive subjects. Whereas this study supported the hypothesis that an inherited cardiovascular reactivity would and could account for the greater index of hypertension amongst South African blacks, it is also possible that the non-psychological expression of tension or cardiovascular reactivity in the form of state anxiety could partially account for the results herein obtained.