Final answer:
Functional fixedness is a cognitive bias that limits creative problem-solving by restricting one's perception of an object's use beyond its intended purpose.
Explanation:
Functional fixedness is a cognitive bias where individuals are unable to see an object's use beyond its conventional purpose. It hinders problem-solving by limiting one's ability to think creatively about objects. An example is Duncker's candle problem where participants struggled to use a box of thumbtacks for a different function.
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