A comparison of outcomes of virtual school courses offered in synchronous and asynchronous formats

As part of the formative evaluation of Alabama's pilot of its virtual schooling system (the Alabama ACCESS Distance Learning Program), the Alabama State Department of Education examined outcome data from courses offered in the two distance delivery systems: web-based course management and interactive videoconferencing (IVC). In light of Bernard et al's. [Bernard, R., Abrami, P., Lou, Y., Borokhovski, E., Wade, A., Wozney, L., et al. (2004). How does distance learning compare with classroom instruction? A meta-analysis of the empirical literature. Review of Educational Research, 74(3), 379–434] recent meta-analysis finding that asynchronous distance environments generally had more positive outcomes than synchronous ones, a comparison of online (asynchronous) and IVC (synchronous) platforms provided an opportunity to explore and shed more light on outcome comparisons between synchronous and asynchronous platforms. Though there were some outcome differences, the dominant finding was of no differences between platforms.     

Provenance and credibility in scientific data repositories

Despite a long history of rich theoretical work on provenance, empirical research regarding users?? interactions with and judgments based upon provenance information in archives with scientific data is extremely limited. This article focuses on the relationship between provenance and credibility (i.e., trustworthiness and expertise) for scientists. Toward this end, the authors conducted semi-structured interviews with seventeen proteomics researchers who interact with data from ProteomeCommons.org, a large online repository. To analyze the resulting interview data, the authors apply Brian Hilligoss and Soo Young Rieh??s empirically tested theoretical framework for user credibility assessment. Findings from this study suggest that together with other information provided in ProteomeCommons.org and subjects?? own experiences and prior knowledge, provenance allows users to determine the credibility of datasets. Implications of this study stress the importance of the archival perspective of provenance and archival bond for aiding scientists in their credibility assessments of data housed in scientific data repositories.