Putting Evidence-based Practice to Work, Frank Cervone and Amanda Hollister
Frank:
- most librarians haven’t been trained in HCI
- defined evidence-based practice
- data provides primary evidence for decision-making
- it’s not “common sense” – different stuff generally happens than what you “think” will happen
- Ex – doing a usability test, then comparing it with other similar tests to see the larger picture
- similar to user-centered design
- SPICE – setting, population, intervention, comparison, and evaluation
- Northwestern did their first usability test in 2001
- 2002 – did a catalog usability test – they found that the greatest number of searches that failed were title searches – title search was the default search setting, students were typing keywords into the default search box and not finding anything… so they found some great info from this test
- overall, site usability has improved – and they can prove it with statistical measures
- debates about how to proceed are easier – because they have data to fall back to
- easier to develop a strategy for incremental improvements over time – no longer locked into a tight academic schedule – they can prove the change will be an improvement, so have the go-ahead to roll the change out
- remaining issues – jargon and “i can find everything in google” problems
Amanda:
- spoke on making dynamic, page-based breadcrumbs on a website
- did a study of common paths customers took to get to certain pages
- they made something that constantly tells what paths customers are taking – very cool! They can narrow down to a single day if they want to
- future directions – implement predictive track analysis – find out where people are getting lost dynamically, then have something po up that says “were you really looking for this?”


