Is There a Bias in Bicycle Research?

There is actually a bias, because that bias introduced by the lack of data. Most people who answer those questions are either avid cyclists or pepil just don't do not have any idea of cycling. It is really hard to get that representative sample of cyclists to be able to draw the right conclusions. But in our research, at least, our model tried to include predictors. Because whenyou think about age, income and population, they're somewhat correlatedt each other. So these are definitely interesting factors to look at.