This dissertation describes an experiment to investigate how learners with different levels of background in computer science learn core concepts of computer science, in particular, algorithms. We designed a study to focus on cognitive task analysis for eliciting the empirical mental elements of learning two graph algorithms. Cognitive workload…

Children from low-income households are at risk for entering school behind their more economically advantaged peers across major domains of school readiness. The Head Start program represents the federal government's response to these achievement gaps by mandating the use of scientifically based assessments and curricula to provide children with…