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Traditional studies of intelligent tutoring systems have focused on their use in the classroom. Few have explored the advantage of using ITS as a web-based homework (WBH) system, providing correctness-only feedback to students. A second underappreciated aspect of WBH is that teachers can use the data to more efficiently review homework. Universities across(More)
1. Medulla interneurons of the optic lobe of P. americana were studied to determine their spectral properties. These neurons exhibited tonic firing which changed with monochromatic broadfield illumination of the ipsilateral eye. The response patterns of these neurons were analyzed by inferring their relation to the ultraviolet (UV) and green (G)(More)
Many intelligent tutoring system (ITS) researchers are looking at ways to detect and to respond to student emotional states (for instance animated pedagogical agents that mirror student emotion). Such interventions are complicated to build, and do not take advantage of the potential for teachers to be part of the process. We present two studies that(More)
Much of the literature surrounding the effectiveness of intelligent tutoring systems has focused on the type of feedback students receive. Current research suggests that the timing of feedback also plays a role in improved learning. Some researchers have shown that delaying feedback might lead to a " desirable difficulty " , where students' performance(More)
Due to substantial scientific and practical progress, learning technologies can effectively adapt to the characteristics and needs of students. This article considers how learning technologies can adapt over time by crowdsourcing contributions from teachers and students – explanations, feedback, and other pedagogical interactions. Considering the context of(More)
Knowledge tracing (KT) is well known for its ability to predict student knowledge. However, some intelligent tutoring systems use a threshold of consecutive correct responses (N-CCR) to determine student mastery, and therefore individualize the amount of practice provided to students. The present work uses a data set provided by ASSISTments, an intelligent(More)
INTRODUCTION Weight loss and physical activity achieved through the Diabetes Prevention Program (DPP) have been shown to reduce type 2 diabetes risk among individuals with prediabetes. The New York State Young Men's Christian Association (YMCA) delivered the 16-week evidence-based model at 14 YMCAs. A mixed methods process and outcomes evaluation was(More)
Exciting developments in the fi eld of cancer imaging have led to important insights into the origins and biology of cancer, as well as novel techniques for early diagnosis, accurate staging, and monitoring of response to therapy for cancer patients. These new discoveries have great potential as tools for basic and translational research in cancer biology(More)