This study records findings of a study carried out in a group of 100 students at a South African university. This study examines the group's assignments as a way of gathering evidence about pre-service teachers' achievements in the process of education and training. The empirical study was based on comparative analysis of scores obtained by…

The psychometric properties associated with the "specific objectivity" of the simple logistic model are acknowledged to be far superior to those of competing models. It is therefore the ideal model to be used for test development or for the analysis of any measuring instrument developed within a well-defined psychological construct. In…

The stability and change of verbal, non-verbal, and total IQ scores from group tests were investigated for students tested at Grades 1, 2, 4, 7, 9, and 11. Conclusions are discussed in detail, and the following recommendations are made: (1) Group intelligence tests should not be routinely administered in Grades 1 and 2 unless the users and…