MaryCh

So I read Think like a Freak, and then glimpsed through a well-intentioned collection of "Reading Comprehension Tests for Schoolchildren" (in Ukrainian), and I was appalled at how easily the latter book dismissed simple observation of natural experiments that it makes a token effort to describe in favour of drawing...

Would you say the picture below (by A. S. Shevchenko) is almost like an optical illusion? Have you seen any pictures or sights that fooled your brain for a moment but that you wouldn't call optical illusions, and if yes, what is the salient difference?

This post is from the point of view of the middleman standing between the grand future he doesn't understand and the general public whose money he's hunting. We have a certain degree of power over what to offer to the customer, and our biases and pet horses are going to...

As an experiment, here's a thread for people to post about things they care about. Specifically, for things that are possible to contribute to, in some way, and preferably, to invite others to join. Mine is buying and donating highschool textbooks to schools in the 'grey zone' of Ukraine (where...

TL;DR: I ask for help, either entirely theoretical or more concrete, with design of a quick-and dirty independent survey. In particular, I need to know how to estimate the sample size, number of questions and some other things. I expect to see an effect, but 1) a small one, 2)...