I don't know about any studies out there that might refute this claim. If there are, I don't know about them.
This COULD be a potential limitations, but I guess the overall explanation is that because even if individuals are influenced by their life stories or individual experiences that affected their compassion or dietary behaviours, it will only be one individual scores that's getting affected. It would not be enough to affect or throw the data off balance. However, I will say your point has a very thoughtful touch to it because IF the study was conducted only on one group of people of a certain demographic, then yes we can go on to argue it's possible groups of certain demographic, age bracket, areas, may pose significant confounds. This is why replications of the study, meta-analysis, and random sampling is extremely important. By having a large enough sample of people of all sorts and walks, then the data will be even more accurate. However often they are limited by funding, so again what you said I will say there's some weight to it. As for the actual operation definition, I don't remember, but often they avoid bias or letting the participants from detecting the study by hiding the stuffs within a bunch of distractors.
This is just to rebuff your idea I do because others do it too.
I do admit I didn't read it carefully, but I did get confused with the wordings back and forth at some point. And actually I brought up the study not exactly because I believe that's the golden truth, but rather because I just happened to know of it so I want to share it as a "speaking of which". It's an interesting study, which I think i mentioned, because I was surprised about that myself.
Nature don't set up the environment to kill us off. Let's say supervolcanic eruption happened, or natural climate change or some forms of physical geographic phenomenon happened that wasn't the cause of human activity occurred and as a result we are dying, then that is natural. Anything that's happened as a result or from the cause of human behaviour, then we are responsible.
It was published and cited. What?
Not sure what you mean, but do you mean because I didn't provide sufficient information, therefore you just have to assume with what I have told you? I'm slightly lost at what you mean. Um as for the paper, I have to find it, although I do think it's actually cited material in a journal called species-ism, which explored how humans see ourselves as superior to other forms of beings, and thus also creates hierarchy and classisms and so on. In the reference they will always have the original paper, so usually that's how you can find where it's from. Anyway, IF you really do want it, I can try and search it up. It's a good read because they explore classism amongst many things, and it's very interesting.
What? What are you talking about?