A mini-dissertation submitted to the Faculty of Education in partial fulfillment of the requirements for the degree of Master of Education (Educational Psychology) in the Department of Educational Psychology and Special Education at the University of Zululand, 2004. / This study investigates the validity of the General Scholastic Aptitude Test as a tool for predicting academic success for first year Information Technology (IT) students. Secondly it seeks to establish if it is an equally good predictor for the various racial groups in South Africa. Thirdly it investigates it’s usefulness as a predictor for the different gender groups. The final aim is to establish whether the GSAT correlates with the Swedish Rating (SR) and English language ability in terms of predicting academic success for first year IT students. The student group that served as the sample was the first year IT student group over the three year peroid from 2000 to 2002 at the Port Elizabeth (PE) Technikon. The study found that there was a weak link between GSAT and academic success across the entire sample. It however proved not to be an equally good predictor across all the racial groups, where it proved to be a far more useful tool for white students than for students from the other racial groups. Insofar as the gender groups were concerned it appeared to have some predictive power across the whole sample but not necessarily equally for the different gender and racial groups. There appeared to be a positive correlation between GSAT and Swedish Rating but not between GSAT and English language ability. From this study it appears that the GSAT has some merit in predicting academic success, although with differing rates of usefulness across different demographic groupings in South Africa. In addition there are many other factors that may militate against academic success in a student’s life which may hinder the usefulness of the GSAT as a predictive tool. If such assessments are to be used it would seem that they should be used very carefully, that factors reducing the chances of academic success need to be identified, and that institutions ensure that programmes are in place to empower students to maximize their potential.

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)

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)