The route I followed had been carefully calibrated to eat up exactly one hour, but if I jogged I could take all my measurements in under forty minutes, leaving twenty minutes unaccounted for.
Very 'back of the envelope', but I think my measurements are in the right ball park".
Professors Arum and Roksa assume, wrongly in my opinion, that quantitative measurements — like the number of pages that students must read or write in a given course — accurately reveal whether a course is rigorous and whether students learn something of value.
There are at least two sources of measurement error in my study.
You can have loads of arguments about perception but the role of science is to make models, in my view, and you take measurements and make models and you see if the model describes nature.
"The measurements," says Coltman, "are in my head.
In fact, muons were first discovered, in 1936, in measurements of cosmic rays.
As Katy pointed out in our many discussions, security may be the last frontier of equality: "Why do I deserve security, when another does not?" In hindsight, all my frantic measurements of risk seem self-congratulatory and, quite frankly, embarrassing.
