| # | IQ Level | President | % Correct |
|---|---|---|---|
| 20 | 132.5 | George Washington | 92%
|
| 12 | 140 | Abraham Lincoln | 90%
|
| 13 | 139.6 | Franklin D. Roosevelt | 88%
|
| 8 | 142.3 | Theodore Roosevelt | 88%
|
| 7 | 142.5 | John Adams | 84%
|
| 2 | 153.8 | Thomas Jefferson | 84%
|
| 4 | 148.8 | Bill Clinton | 83%
|
| 1 | 168.8 | John Quincy Adams | 83%
|
| 3 | 150.7 | John F. Kennedy | 79%
|
| 23 | 131 | Richard Nixon | 78%
|
| 6 | 145.1 | Jimmy Carter | 77%
|
| 22 | 131.9 | Dwight D. Eisenhower | 76%
|
| 5 | 145.1 | Woodrow Wilson | 76%
|
| 11 | 141.3 | James Madison | 73%
|
| 21 | 132.2 | Benjamin Harrison | 64%
|
| 24 | 130.9 | Grover Cleveland | 63%
|
| 25 | 130.2 | James K. Polk | 63%
|
| 17 | 133.9 | William Henry Harrison | 63%
|
| 19 | 133.4 | Martin Van Buren | 61%
|
| 9 | 141.5 | James Garfield | 60%
|
| 16 | 134.8 | Franklin Pierce | 59%
|
| 14 | 136.2 | John Tyler | 59%
|
| 18 | 133.9 | Rutherford B. Hayes | 55%
|
| 10 | 141.5 | Chester A. Arthur | 53%
|
| 15 | 136 | Millard Fillmore | 47%
|