Personally, I would not put much stake in a website claiming to have the ability to analyze a 50-word writing sample and approximate the IQ of the writer.
Authors vary their writing for different audiences. When writing for children, or a general audience which may include people who are new to a topic, one may write more simply. This ability to pare down a message to its essence does *not* indicate a lower IQ.
Along the same lines, using cut/paste to provide one's facebook posts for analysis may result in a significantly different estimated IQ than analyzing a professionally published article composed by the same person.
Additionally, a person may be multi-lingual, yet English may not be their main language. They may hear, understand, and speak English much better than they may write in English.
The website reminds me of various writing analyzers which have been incorporated into topics presented at professional development seminars. These tend to analyze attributes such as sentence length, vocabulary, and number of syllables to assess the comfortable grade level of readers in the intended audience. This is separate and distinct from the author's IQ.
Some links which may be of interest:
-
https://en.wikipedia.org/wiki/Gunning_fog_index-
https://en.wikipedia.org/wiki/Readability_test
