“A z-score tells you where the score lies on a normal distribution curve. A z-score of zero tells you the values is exactly average while a score of +3 tells you ..”
So I’m to read that as hard left people are more depressed than conservatives? Or are under more stress than conservatives? Or react to stress with depression more than conservatives.
I’m trying to more fully understand the chart. And maybe I’m over-analyzing it. I do that sometimes.