Do children prefer good people?

Any mother has noticed how babies have more appreciation for some people than others.

Something that is difficult to explain by the young age of the minor and with it a little experience.
Although the concept of "good or bad" person is a social construct, where the good person is considered that follows the rules established by the society, and the bad person who violates them.
The minor with his experience and the rectifications of the students gradually learns what is appropriate or not, and therefore what are the limits that the fixed society for the behaviors, as well as the consequences of its transgression.
It takes years to learn, so that with the little ones is more tolerant to certain behaviors that would not be allowed adult but do children prefer good people?

Research

This is what he has tried to find out with an investigation carried out from the Faculty of Human Sciences, Women's University of Jissen; Along with the Department of Psychology, Chuo University (Japan) whose results have been published in February 2019 in the scientific journal Plos One. 

Twenty-two children aged between six and eight months were involved in the study, of which 10 were girls. All of them were presented in front of the computer four images of adult faces generated by computer where they handled two variables of dominance and reliability of the face. 

That is to say, it showed a highly dominant and high reliable face; Highly dominant and low reliable; Key bass and high reliable; and low key and reliable low. 

The images of the faces were presented two by two to analyze the attention of the child, estimating that the face to which he spends more time is of greater preference, for it was recorded the look of the child.

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Results

 The results show that before high-dominance faces, minors prefer those who are more reliable. 

Instead, faced with low-dominance faces, the reliable fact does not seem decisive. With these data the authors defend the early ability to make social distinctions, with little experience from minors. 

Despite the foregoing, they have not explained why the reliability only seems to affect the dominant faces against the dominant ones.