Has ordering people along a Ape to Human diagram, as a measure of dehumanization for people in general, been validated in any way?

Because it seems, if confronted with such a diagram and asking people where to place a specific person, or group of people...

It seems rife with the possibility of jokey answers, or only those thoroughly convinced in their belief of there being humans of unequal worth, such that it'd be more a test for whether someone is an unashamed racist or anti-vegan or some such, instead of a test about whether there's implicit dehumanization, like there are tests of implicit bias.

Is there any proof that the tests can screen out joke answers and are applicable to people who are not unashamed discriminators?

I don't have any access to journal subscriptions, so I wouldn't know where to go to check if there's been any proof that it successfully tests for deliberately hidden / repressed / implicit dehumanization.

Places where such a test has been described as being used, as reported by Vice.

Researchers have now found an explanation for why many drivers act out toward cyclists: They are actually dehumanizing people who ride bikes, according to an April study by Australian researchers in the journal Transportation Research.


The researchers asked 442 Australians, including those who identified as cyclists, to rank the average cyclist on a scale from ape to human. This ape-to-human diagram has been used in other studies, like this one from 2015, looking at the dehumanization of marginalized groups, such as Muslims and black people.

The April 2019 article says, in its abstract:

This paper presents a pilot study applying two validated dehumanization measures to a road user group for the first time.


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  • $\begingroup$ Is the question whether it has been confirmed that people placing others along the diagram correlates with other manifestations of dehumanization? If so, this is not a question about history. And isn't the very article you linked just such a confirmation? It shows that the placement "predicts self-reported aggressive behaviour toward them"? $\endgroup$ – Conifold Apr 24 at 20:37
  • $\begingroup$ @FrankHubeny - So, what is the question that you think I'm asking? Since I used too many words that now I'm confused. ... I'm gonna flag for move to Psych. Since I can and it makes sense. $\endgroup$ – Malandy Apr 24 at 22:20
  • $\begingroup$ I think you are asking what is in the title: Has ordering people along the Ape to Human diagram been validated in any way as a measure of dehumanization for people in general? $\endgroup$ – Frank Hubeny Apr 25 at 0:10
  • $\begingroup$ @Conifold - I'm just gonna bold the paragraph that seems to cover what you're asking, and you tell me if that helps, okay? $\endgroup$ – Malandy Apr 25 at 0:40
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    $\begingroup$ Did you read the study in Transportation Research that you linked (or even just the abstract)? It seems to me like that study is exactly the validation you are asking for, so I'm not sure at all what your remaining question is. $\endgroup$ – Bryan Krause May 3 at 16:34

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