Numeracy is important for everyday life. Being numerate has a positive impact on the quality of life of individuals, with positive economic, health, and social outcomes. Despite this, little is known about the role of numeracy in the lives of adults with intellectual disability (ID). Design research has been used to develop ways to support…

The notion of optimality is often invoked informally in the literature on metacognitive control. We provide a precise formulation of the optimization problem and show that optimal time allocation strategies depend critically on certain characteristics of the learning environment, such as the extent of time pressure, and the nature of the uptake…

This study examined the relationship between witness age, narrative features in testimony, and the perceived credibility of witnesses. Ninety older and young adult witnesses to a staged theft were videotaped as they freely recalled crime events. Later, participant-jurors viewed the videos and assessed the witnesses' credibility. Operational…

Kindergartners who had been taught to classify serials and conserve numbers through learning set procedures were retested one year later and compared with control children. Significant cognitive gains initially resulting from special intervention increased. (Author/BB)