"So do you agree that all groups of women have the same overall level of intelligence, regardless of their race, ethnicity, or religion?"
This is an interesting question.
First, we have to define intelligence:
capacity for learning, reasoning, understanding, and similar forms of mental activity;
aptitude in grasping truths, relationships, facts, meanings, etc.
Individually, we have different natural endowments. This endowment is not based on religion or race or gender. It's based on the individual's capacity. Think of a bell shaped curve....some are born with a much greater capacity than others, some with far less capacity. Most of us have a similar capacity.
The
use of intelligence is an
acquired skill. It has to be acquired by a child’s own effort and automatized by his own mind, but adults can help or hinder him in this crucial process.
So then the question becomes: Does Islam help women acquire the use of their naturally endowed intelligence.
The answer is no. Nor does it help men.
One proof is the level of illiteracy.
"Of the 1.4 billion Muslims 800 million are illiterate (6 out of 10 Muslims cannot read). In Christendom, adult literacy rate stands at 78 percent."
"Large numbers of children in African and Arab countries are still shut out of classrooms, with primary school participation at below 60% in 17 OIC countries. More than half the adult population is illiterate in some countries, and the proportion is as high as 70% among women. Four out of 10 children in the African sub-region are out of school, as are a quarter of children in Arab member states."
"The 57-member countries of the Organisation of Islamic Conference (OIC) have around 500 universities compared with more than 5,000 universities in the US and more than 8,000 in India. In 2004, Shanghai Jiao Tong University compiled an "Academic Ranking of World Universities", and none of the universities from Muslim-majority states was included in the top 500."
"The 2002 United Nations Arab Development Report, compiled by leading Arab scholars and intellectuals, reported that fewer than 350 books were translated into Arabic every year, less than one-fifth the number translated into Greek. The 2003 report added that the 10,000 books translated into Spanish every year exceeded those translated into Arabic— over the entire millennium."
"Two thirds of all immigrant school children with Arabic backgrounds are illiterate after 10 years in the Danish school system. Those who speak Arabic with their parents have an extreme tendency to lack reading abilities - 64 percent are illiterate. ... No matter if it concerns reading abilities, mathematics or science, the pattern is the same: The bilingual (largely Muslim) immigrants' skills are exceedingly poor compared to their Danish classmates."
"Made available to INDIA TODAY exclusively, the findings are disheartening. The facts irrefutably demonstrate that, on an average, Muslim men and women are far less educationally accomplished than their non-Muslim counterparts, and this is so across almost every state in India."
"The global standing of Indonesia’s universities has dropped according to the latest world rankings published by Quacquarelli Symonds. The University of Indonesia, remains No. 1 in the country, but is only ranked 273rd globally."
"Illiteracy among Nigerian women of child-bearing age is three times as high among Muslims (71.9%) as among others (23.9%). Two-thirds of Nigerian Muslim women lack any formal education; that goes for just over a tenth of their non-Muslim sisters."
There is much more. The lucky Muslims will get a Western education.
Muslim Statistics (Education and Employment) - WikiIslam
Islam does not foster intelligence in women, or men.