Ashkenazis aren't higher IQ than europeans by KingofNatufians et al 2026

У ашкеназов IQ не выше, чем у европейцев»

(Или в более формальном варианте: «Ашкеназские евреи не превосходят европейцев по уровню IQ

### Step 1: Converting PISA Scores to the IQ Scale
PISA scores are standardized with an OECD average of 500 and a standard deviation (SD) of 100. IQ scores are standardized with a mean of 100 and a standard deviation of 15.

To convert a PISA score to an IQ score, we use the formula:
IQ = 100 + 15 ×( (PISA Score - 500)/100)
Or simplified:
IQ = 100 + 0.15 × (PISA Score - 500)

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### Step 2: Israel's PISA Scores by Sector
Israel's overall PISA scores are highly stratified. The test results are officially divided into the Hebrew-speaking sector (which is overwhelmingly Jewish) and the Arabic-speaking sector (Arab minority).

According to recent PISA cycles (such as 2018 and 2022), the average scores across Math, Reading, and Science are approximately:

•   Hebrew-speaking sector average:  495 PISA points
•   Arabic-speaking sector average:  390 PISA points

Using our conversion formula, we get the average IQs of the tested populations:
•   Hebrew-speaking Sector IQ:
    100 + 0.15 × (495 - 500) = 99.25 ≈(99.3)
•   Arabic-speaking Sector IQ:
    100 + 0.15 × (390 - 500) = 83.5 ≈(83.5)

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### Step 3: Hebrew-Speaking Sector Demographics
The tested Hebrew-speaking cohort in PISA (15-year-olds) does not perfectly match the overall adult population because Ultra-Orthodox (Haredi) boys' schools largely opt out of the math/science parts of the test.

Of the tested Hebrew-speaking cohort, we can estimate the broad demographic split of the students:
•   Ashkenazi Jews (including post-Soviet immigrants):  45
•   Sephardic / Mizrahi / Other Jews (including Ethiopian and mixed-heritage):  55

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### Step 4: The Ashkenazi vs. Sephardic/Mizrahi IQ Gap
In psychometric literature (such as studies by Zeidner, Lieblich, and meta-analyses by Richard Lynn), there is a documented cognitive gap between Ashkenazi and Sephardic/Mizrahi populations in Israel.

•   In the mid-20th century, the gap was estimated at about 10–14 IQ points (0.7 to 0.9 standard deviations).
•   Due to generations of integration, socio-economic improvement, and high rates of intermarriage (nearly 30

Let:
•   X = Average IQ of Ashkenazi students
•   X - 8 = Average IQ of Sephardic/Mizrahi/Other Jewish students

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### Step 5: Solving for Ashkenazi IQ
Using the weighted average of the Hebrew-speaking sector's calculated IQ (99.25):

0.45(X) + 0.55(X - 8) = 99.25

Now, solve for X:
0.45X + 0.55X - 4.4 = 99.25
X - 4.4 = 99.25
X = 103.65

—

### Conclusion / Estimated IQs
Based on this PISA-derived mathematical model:

1.  Estimated Ashkenazi Jewish IQ (Israel):  103.7 (approx. 104)
2.  Estimated Sephardic/Mizrahi Jewish IQ (Israel):  95.7 (approx. 96)
3.  Hebrew-speaking Sector average IQ: 99.3
4.  Arabic-speaking Sector average IQ: 83.5