<span>Your rule of thumb to multitask effectively should </span>be to never allow any task more time and attention than it is needed. Because if you do, you cannot perform multitasking because you are devoted to a particular task only. For example, when answering an exam, you need to read every item carefully. If you cannot solve the item you are currently reading, skip it and proceed to the next one to save time.
Answer:
functional fixedness
Explanation:
functional fixedness is originated from gestalt psychology. It is explains the cognitive bias that makes one assume that a particular device is only used or applied in a particular way and therefote can't be used inbany other way or for any other thing. This is demonstrated here where Ben overcomes this bias by using a dime to tighten the screw instead of a screwdriver
