TomB: "...Your height and weight data support what most instructors know form experience..."
That's what I have observed myself over the years, and, in fact, is exactly why I put those two questions in the poll - I was curious to see if there was anything to my impression.
BTW, to be precise, we don't yet have the blessing of statistics to say that we "proved" this supposition. Unfortunately, with the present number of respondents, all I can "officially" say is that the data suggests that these two trends might be present and more data would be needed to resolve this question.
Gonz: "...the questions don't have the level of complexity that would come closer to ferreting out the causes of falls..."
Yup, I know. All I can say is that I had to start somewhere to get the basic demographics, an idea of the number of respondents, etc. As I said to gForce (or someone), maybe in a couple of weeks (when my work eases up a bit) I'll do another poll, nailing down definitions, asking about comfort zones and other possible causes, etc. I got to say, however, that while fun and rare/unique on the web, the polling facility available to us here really makes doing any sort of serious survey very difficult. To circumvent this and to be able to use my normal statistical software, I was thinking of asking people to email me their responses, but then (a)I have to enter all the data myself, and, (b) even worse, the respondents no longer have anynominity. Gotta think about this... JCK, any ideas on how to do something like this without having it be a major time sink?
Fox: "...Anyone want to back up my theory?..."
Sure! What will you pay me?
Seriously, tho, I agree with you that many factors could contribute to this, and one possible one is the "longer lever arm" issue that you suggested.
Finally, a bunch of people made comments along the line of "Why does everybody think falling is bad?", "Why does everybody think falling frequently is a sign of a bad skier?", etc.
There is nothing that I've said, in the data, or in its analysis that said or even suggested this. About the closest one can come is my statement that there is a statistically significant relationship between lower fall frequency and skier ability level. A correlation like this can't and shouldn't be used to say that people who fall frequently are bad skiers. A statistical analysis is by its nature an "on-average" thing, not a rule. Don't forget, there can be up to 49.9% of people that buck a trend, and it will still remain a trend.
Add to this the issues of fall definition, "semi-intentional" falls, pushing envelopes, etc., and nobody should automatically label people who fall often as poor skiers.
Tom / PM[ April 24, 2003, 06:50 AM: Message edited by: PhysicsMan ]