Quality:

Eyferth study - racial study done by Klaus Eyferth in West Germany. Article “Eyferth study” in English Wikipedia has 23.7 points for quality (as of July 1, 2025).
The article contains 10 references and 6 sections.
Since the creation of article “Eyferth study”, its content was written by 26 registered users of English Wikipedia and edited by 26 registered Wikipedia users in all languages.
The article is cited 3 times in English Wikipedia and cited 3 times in all languages.
The highest Authors Interest rank from 2001:
- Local (English): #74641 in April 2023
- Global: #258488 in April 2023
The highest popularity rank from 2008:
- Local (English): #50595 in March 2015
- Global: #103974 in March 2015
There is 1 language version for this article in the WikiRank database (of the considered 55 Wikipedia language editions).
The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).