Why you should be skeptical of evolutionary psychology

Using the attractiveness of waist-to-hip ratio as an example, psychologist and blogger Sabrina Golonka explains why you have to be skeptical when someone declares a psychological finding to be a universal human truth. It's not universal if it doesn't cross cultures. But we don't have great cross-cultural psychology data, and, where the data does exist, it suggests that things we assume must be true across cultures often are not.