Average IQ in Dominican Republic: Estimates & Context
Estimated Avg IQ
~82
Rank in This Dataset
#117
of 125 countries covered
Region
Caribbean
Important note: National average IQ scores are estimates based on limited sample sizes and vary across studies. These figures are heavily influenced by socioeconomic factors, access to quality education, healthcare, nutrition, and testing conditions. They do not reflect the intelligence or potential of any individual from that country. IQ scores measure specific cognitive skills and should be interpreted within their proper scientific context.
Where These Numbers Come From — and Why They're Debated
There is no official global IQ census. National IQ figures like the one above come from compiled cross-national datasets — most famously the compilations begun by Richard Lynn and Tatu Vanhanen (IQ and the Wealth of Nations, 2002) and successor datasets, alongside alternative estimates derived from international student assessments such as PISA and TIMSS. These compilations are heavily debated in the academic literature: critics have documented small and unrepresentative samples for many countries, scores extrapolated from neighboring nations, mixing of different tests and decades, and translation and cultural-fit problems. Different datasets can shift a country's estimate — and its rank — by several points.
For these reasons, the figure for Dominican Republic should be read as a rough estimate of average performance on Western-style cognitive tests under the conditions in which the underlying samples were collected — not as a measure of the innate ability or potential of Dominican Republic's people. Population-level test averages track education access, childhood nutrition, health, and economic development, and they change as those conditions change (see the Flynn Effect below).
Education System in Dominican Republic
The Dominican Republic has significantly increased education investment in recent years, dedicating 4% of GDP to education following a constitutional mandate. The country participates in PISA and shows improvement, though it remains well below OECD averages. A new school construction program built hundreds of facilities. Challenges persist including teacher quality (teacher evaluations have been contentious), urban-rural disparities, and high secondary school dropout rates among boys. The country has made notable progress in school feeding programs that address malnutrition affecting cognition. Spanish-medium instruction is accessible to the population, unlike many neighboring Caribbean nations.
To understand what IQ scores measure and how they're calculated, see our guide on what IQ is. For a breakdown of what different score levels mean, visit our IQ score ranges page.
Dominican Republic Compared to Caribbean
Here is how Dominican Republic compares to other countries in Caribbean that are included in our database:
| Country | Average IQ | Global Rank |
|---|---|---|
| Dominican Republic | 82 | #117 |
| Cuba | 85 | #94 |
| Jamaica | 71 | #95 |
| Haiti | 67 | #116 |
Countries with Similar Rankings
These countries have similar average IQ scores and global rankings to Dominican Republic:
| Country | Average IQ | Global Rank | Region |
|---|---|---|---|
| Uzbekistan | 87 | #107 | Central Asia |
| Turkmenistan | 87 | #108 | Central Asia |
| Kyrgyzstan | 75 | #109 | Central Asia |
| Tajikistan | 75 | #110 | Central Asia |
| Philippines | 86 | #111 | Southeast Asia |
Understanding IQ Distribution
It's crucial to remember that national averages represent the middle of a wide distribution. Within every country, individual IQ scores span the full range from below 70 to above 130 and beyond. A country with an average IQ of 82 will have many individuals scoring well above and below that number. Factors like socioeconomic status, nutrition, education quality, and access to healthcare play significant roles in cognitive development and test performance.
The Flynn Effect — the observation that IQ scores have risen substantially over time in many countries — suggests that environmental improvements like better nutrition, healthcare, and education access can significantly impact cognitive test performance at the population level. Many developing nations are experiencing rapid improvements in these areas.
Frequently Asked Questions
What is the average IQ in the Dominican Republic?
The Dominican Republic's average IQ is estimated at 82, ranking #117 globally. The country has made significant education investments in recent years, with a constitutional mandate for 4% of GDP education spending.
Why does the Dominican Republic score 82 on average IQ?
The Dominican Republic's score reflects a middle-income Caribbean economy with significant education investment growth in recent years, Spanish-medium instruction accessible to the population, school feeding programs addressing malnutrition, and PISA participation driving accountability. Remaining challenges include teacher quality, urban-rural disparities, and high male dropout rates in secondary school.
How does the Dominican Republic compare to Haiti?
The Dominican Republic (82) scores significantly above Haiti (67). Though sharing the island of Hispaniola, the Dominican Republic's Spanish language accessibility, more consistent political stability, higher income levels, and substantial recent education investment have produced dramatically better educational outcomes than Haiti's compounding crises.
Explore More Countries
See the full list of all countries on our Average IQ by Country page, or take our free IQ test to see how you compare.
MyIQScores Editorial Team
Editorial team focused on cognitive testing & psychometrics research
Last updated
May 10, 2026
MyIQScores content is written and maintained by our editorial team using published research in cognitive psychology and psychometrics as its source base. We label estimates as estimates, link primary sources where available, correct errors when readers flag them, and update pages as research or feedback warrants — see our corrections policy.