Studies the development of moral autonomy in 720 Australian secondary school and university students between the ages of 12 and 21. Examines autonomy development in the context of moral judgments. Finds the need to add a dimension of individual differences to the single dimension used to describe developmental changes. (Author/NL)

Reports on a study in which children aged 7 to 9 years and 11 to 13 years were asked to judge which one out of three wooden blocks would float, given weight and volume information for each block relative to a block that was known to float. Indicates that judgments may have been based on the size-weight illusion. (HOD)