It is called psyche-yoga or Psychosophy in Eastern Europe. Despite having been created by Afanasyev as an alternative to socionics, it is commonly used as an alternative subtype system to the DCNH, or rather, it is used in combination with socionics to complete the image of psychological types (Cognition, that is socionic + Behavior and priorities, that is psychosophy) in a relatively similar way to how the enneagram is used in conjunction with socionics in the West.
Here's an introductory video by Archetype center
https://youtu.be/_ykQgGKUPak and a very good page in Russian to learn about psychosophy
https://bestsocionics.com/psychosophy/
One more thing, the name of Attitudinal psyche is simply a web name, just as 16personalities is a web name, while the system is the MBTI, but more importantly, the Attitudinalpsyche.com page is horrible in all regards to descriptions and especially to test. It is important to find the correct sources for this system and specifically search for it in russian, as there's almost no quality info about psychosophy in english.
For example, there is a forum user that if I have understood well what she explains in her typing video, has a classic psychosophic second quadra behavior (Do your bed and tidy your room, be correct and act correctly, otherwise you will have my disapproval kind of behavior) while diagnosing herself on the opposite psychosophic quadra, probably because of the test or the information she has got from that web.