Category Archives: Uncategorized

How the NRA and pro-gun Americans abuse Australian crime stats

Faking waves, by way of AstroKatie

Conclusion:

So what is the reality? Homicide and suicide rates have declined in Australia since the 1990s. Deaths results from firearms have plunged even more dramatically. In Australia, mass shootings similar to Port Arthur,
Hoddle Street and Strathfield have not occurred for over a decade.

Is this the result of the gun laws introduced by the Howard government? While some (particularly gun advocates) dispute their impact, several studies conclude the laws have made a difference .

Claims that Australian gun laws have increased crime are pure spin and deception. They say more about American partisan politics than about the reality in Australia.

Making good decisions in a hurry

Sometimes, particularly on television, decision making is presented as a choice between careful analysis and “going with the gut.” On television, of course, the gut always wins. However, in the real world this is a false dichotomy. We often, particularly in a crisis, do neither. Instead we use “heuristics.”

Heuristics enable us to make fast, highly (but not perfectly) accurate, decisions without taking too much time and searching for information. Heuristics allow us to focus on only a few pieces of information and ignore the rest.

See Miracles Happen — The Simple Heuristic That Saved 150 Lives

“Experts … often search for less information than novices do.”

Why psychology is harder than physics

[Varying a lot of experimental parameters is] much easier to do in physics than psychology– physics apparatus is complicated and expensive, but once you have it, atoms are cheap and you can run your experiment over and over and over again. Human subjects, on the other hand, are a giant pain in the ass– not only do you need to do paperwork to get permission to work with them, but they’re hard to find, and many of them expect to be compensated for their time. And it’s hard to get them to come in to the lab at four in the morning so you can keep your experiment running around the clock.

From On Black Magic in Physics