The Doctor IQ

DeductionSolving new problems from thin information

8/10

StrategyMulti-step plans that account for other minds

8/10

KnowledgeDepth and breadth of what they know

10/10

InventionBuilding or devising something genuinely new

9/10

AdaptabilityRecovering when the plan breaks

9/10

Reading peopleUnderstanding what other people want and will do

7/10

1. Improvising against the Daleks

   Strong evidence

   Series-wide

   The Doctor has defeated the Daleks and other enemies many times by a clever trick, a bluff or a reversal of the enemy's own technology. The pattern is consistent across decades, which suggests a flexible, fast mind. Each win is written to be surprising, so we credit the habit more than any single episode. The pattern is also a sign of experience, since the Doctor has seen the enemy so many times.

2. Solving the Time War

   Strong evidence

   "The Day of the Doctor"

   In the 50th anniversary story, several incarnations work together to find a way out of the Time War that avoids the destruction of Gallifrey. The solution requires cooperation across time and a different approach to a problem the Doctor had considered unsolvable. It shows creativity and a willingness to rethink a decision, and counts as strong evidence for invention and adaptability.

3. Scientist and engineer

   Moderate evidence

   Series-wide

   The Doctor keeps the TARDIS running, builds the sonic screwdriver and constructs devices from what is nearby. Breadth across physics, biology and engineering is regularly on display. The explanations are techno-babble, so we cannot check them, and we treat this as moderate evidence for knowledge and invention. The sonic screwdriver in particular stands for a mind that can turn an idea into a tool within minutes.

4. Reading people and cultures

   Moderate evidence

   Series-wide

   The Doctor quickly works out what a society values, how its leaders think and what will move them. Companions and enemies often comment on how fast the Doctor judges a situation. This supports insight, although the Doctor also misjudges people at critical moments. The skill is real but inconsistent, and the best evidence is the Doctor's ability to find the one argument that a stranger will accept.

5. Centuries of accumulated experience

   Minor evidence

   Series-wide

   Age gives the Doctor an enormous store of knowledge, which the show uses as an advantage. Experience is not the same as intelligence, so it counts for less than a demonstration of reasoning. The show uses age as shorthand for wisdom, but it also shows the Doctor repeating old mistakes, so we do not push the number up. Long life makes the Doctor well informed, not automatically sharper.

1. Frequent mistakes

   Series-wide

   The Doctor misjudges enemies, trusts the wrong people and sometimes causes the disaster in the story. A mind at the very top of the scale would be fooled less often. The errors are often the reason the story happens at all, and the show treats them as a key part of the character, so they count against the highest bands.

2. Outplayed by prepared enemies

   Series-wide

   The Master and others have beaten the Doctor with plans that were ready before the Doctor arrived. Improvisation does not always beat preparation. Those defeats usually come when the opponent has studied the Doctor's habits, which is a sign of how predictable the improvisation has become over time.

3. Many writers, many Doctors

   Series-wide

   The character changes with each actor and each decade, so there is no single consistent mind to measure. We therefore hold confidence at low and mark the number as a ranking tool. Any number is therefore a summary of a changing character, not a measurement of a person, and we say so on the page.

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