Psychometric analyses of computer adaptive practice data A new window on cognitive development

In this dissertation entitled "Psychometric Analyses of Computer Adaptive Practice Data: A New Window on Cognitive Development" we investigated a wide set of cognitive tasks that are either directly or indirectly related to an educational setting. These tasks ranged from general abilities such as proportional reasoning to specific skills such as learning to touch type. The majority of the data was collected with adaptive web-based games from Oefenweb, like Math Garden. In the first part of this dissertation we analyzed cross-sectional data to study between person differences, such as the cognitive strategies involved in the different tasks (Chapters 2-4). In the second part of this dissertation we used a longitudinal approach to uncover within person dynamics (Chapters 5-7).