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Berg's Card Sorting Task
A lot of research on human problem solving focuses on how we develop strategies to solve fixed problems. But problems often are not static; the problem changes, old strategies no longer work, and new strategies must be adopted.
When a participant goes from knowing that color is the correct sorting attribute to suddenly being told they are wrong, they have to update their internal rule and strategy (Nyhus & Barcelo, 2009). Temporal stability of the Wisconsin Card Sorting Test in a chronic traumatic brain injury sample. The Wisconsin card sorting test and the cognitive assessment of prefrontal executive functions: a critical update.
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