Bike Philly and Commuter Challenge surveys are, we are bicycle advocates, not academics. We lack the scientific rigor of those who spend their time thinking about how best to get meaningful information out of people via 1-to-5 scales. Fortunately, there are smart people with lab coats and clipboards also interested in how and why people walk or bike to work.
Penn State's Department of Kinesiology is currently asking folks to fill out an online survey about their attitudes concerning walking, biking, or driving to work. If you love surveys, or love the notion of accumulated data, fill 'er out! Anyone can take the survey, but if enough Philadelphia-area residents fill it out, the study could tell us some interesting things about ourselves.
(The website says it takes 15 minutes, but I completed it in ten.)
Note: that is not a picture of a Penn State professor or Ph.D. candidate. But it is a picture of Dr. Bunsen Honeydew, and that is always a good thing.