I thought the group might be interested in a recent project we did with LinkedIn. It was a two phase project, first data mining and link analysis, then primary survey research, some text analytics, and a user segmentation.
I took your test and was assigned to the "Savvy Networker" segment - although I view myself in a fifth segment: "Those Who Can Just Barely Figure It Out When Given Enough Time" segment.
I was surprised that the survey did not ask me how many connections I had or how long I've been on LinkedIn. The survey categorized me as a "LinkedIn late adopter." I found this odd considering I joined LinkedIn as early as 2002 (maybe earlier-- joined when you still had to be invited) and have over 300 connections.
I went back and re-took the survey to check more boxes on questions about opportunities/information being sought and changed my employment situation to indicate that I was open for opportunities. With these changes I was re-categorized as a Savvy Networker. To my mind I would think alignment of a person's networking intentions with the profile options they've selected on LinkedIn would be a determinant of who is a savvy networker and who is a neophyte (perhaps harder to test in a simple analytical framework). I have to think number of connections would account for something in this framework.
Granted, more connections does not always equate to savvy. I believe a targeted approach to seeing out new connections (as well as being somewhat circumspect in accepting new connections from others) is much more savvy than the shotgun approach.