Stuart, I have read your report with great interest :)
And I just wonder now, why your university is looking for a new system once you already have a such good system in place? Les On May 8, 2012, at 10:50 AM, Stuart Phillipson wrote: > Hi All, > > At the last unconference in Oxford I did a quick talk on some interesting > data I'd gathered that seems to indicate a trend of increased examination > performance (vs previous years) in a unit that made recorded lectures > available for revision. If you're interested in this and didn't attend have a > look at the "Learning Outcomes" video on this page: > > http://opencast.org/video/opencast-matterhorn-2012-unconference-recordings > > There's also some further detail here: > http://www.ucisa.ac.uk/bestpractice/awards/~/media/Files/members/awards/excellence/2011/Manchester.ashx > > Anyway, I embarked on a larger study to see if the trend could be > demonstrated on a larger scale and I said I'd post to the list when I had > some initial findings. In short, although some units did show a trend of > increased performance, others did not. There's still a fair bit of data > analysis to do, basically a few paired t-test (across lecture capture and > non-lecture capture units using the same cohort) with unequal sample size and > unequal variance is required, but the system has quite a lot of noise in it. > This is mainly due to changes in staff, LMS and other factors that could > account for the variation in results. In addition, the selection criteria of > the larger scale test led to teaching staff volunteering whose teaching > standards were already excellent and this likely made any impact of lecture > capture more difficult to measure. > > I'll post again once I've done the in-depth analysis, but it'll take me a > little while to get that done. Based on this the next obvious question is > what could be done next to investigate this further (in further investigation > is warranted)? Ideally a single blind control group experiment on a unit or > set of units would produce a more conclusive answer. However I doubt this > would be ethical. I can't imagine the practicalities of dividing a class in > half and then telling them only 50% of students would receive lecture > recordings. Even if it were done in all likelihood the group receiving > recorded lectures would share them with the control group. An alternative > would be to target a set of units that showed low variation across an > extended period of time, then measure short term / long term changes with the > addition of lecture capture. It might be a bit tricky to resource this > option, so it's probably more appealing if it were an activity done within a > larger project to rollout lecture capture. > > Sorry for the wall of text, but hopefully that's interesting to some of you. > > Best Regards > > > > Stuart Phillipson | Digital Media Projects Coordinator > > Room 1.83 Simon Building > University of Manchester > Brunswick Street > Manchester > M13 9PL > United Kingdom > > e-mail: [email protected] > Phone: 016130 60478 > > _______________________________________________ > Community mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/community > > > To unsubscribe please email > [email protected] > _______________________________________________ ====================== Dr Leslaw Zieleznik OBIS (Oxford Brookes Information Solutions) Oxford Brookes University Headington Oxford OX3 0BP ______________________ [email protected] Tel: +44 (0)1865 483973 Fax: +44 (0)1865 483073 ======================
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